Massachusetts Arbovirus Daily Update

Current Eastern Equine Encephalitis (EEE) and West Nile Virus (WNV) risk levels in Massachusetts

Table of Contents

EEE and WNV risk level by city/town

County Name City/Town Name EEE Risk Level WNV Risk Level
Plymouth Abington Moderate Low
Middlesex Acton Moderate Low
Bristol Acushnet Critical Low
Berkshire Adams Low Low
Hampden Agawam Moderate Low
Berkshire Alford Low Low
Essex Amesbury Moderate Low
Hampshire Amherst Moderate Low
Essex Andover High Low
Dukes Aquinnah Remote Low
Middlesex Arlington Low Moderate
Worcester Ashburnham Low Low
Middlesex Ashby Low Low
Franklin Ashfield Low Low
Middlesex Ashland Critical Low
Worcester Athol Moderate Low
Bristol Attleboro High Low
Worcester Auburn Moderate Low
Norfolk Avon Moderate Low
Middlesex Ayer Low Low
Barnstable Barnstable Low Low
Worcester Barre Moderate Low
Berkshire Becket Low Low
Middlesex Bedford Moderate Low
Hampshire Belchertown Moderate Low
Norfolk Bellingham High Low
Middlesex Belmont Low Moderate
Bristol Berkley High Low
Worcester Berlin High Low
Franklin Bernardston Moderate Low
Essex Beverly Low Low
Middlesex Billerica Moderate Low
Worcester Blackstone High Low
Hampden Blandford Low Low
Worcester Bolton Moderate Low
Suffolk Boston Low Moderate
Barnstable Bourne Moderate Low
Middlesex Boxborough Low Low
Essex Boxford Moderate Low
Worcester Boylston High Low
Norfolk Braintree Moderate Low
Barnstable Brewster Low Low
Plymouth Bridgewater High Low
Hampden Brimfield High Low
Plymouth Brockton Moderate Low
Worcester Brookfield Critical Low
Norfolk Brookline Low Moderate
Franklin Buckland Low Low
Middlesex Burlington Low Low
Middlesex Cambridge Low Moderate
Norfolk Canton Moderate Low
Middlesex Carlisle Moderate Low
Plymouth Carver Critical Moderate
Franklin Charlemont Moderate Low
Worcester Charlton Moderate Low
Barnstable Chatham Low Low
Middlesex Chelmsford Low Low
Suffolk Chelsea Low Low
Berkshire Cheshire Low Low
Hampden Chester Low Low
Hampshire Chesterfield Low Low
Hampden Chicopee Moderate Low
Dukes Chilmark Remote Low
Berkshire Clarksburg Low Low
Worcester Clinton Moderate Low
Norfolk Cohasset Moderate Low
Franklin Colrain Critical Low
Middlesex Concord Moderate Low
Franklin Conway Low Low
Hampshire Cummington Low Low
Berkshire Dalton Low Low
Essex Danvers Low Low
Bristol Dartmouth Moderate Low
Norfolk Dedham Low Low
Franklin Deerfield Low Low
Barnstable Dennis Low Low
Bristol Dighton High Low
Worcester Douglas Critical Low
Norfolk Dover Moderate Low
Middlesex Dracut Moderate Low
Worcester Dudley Moderate Low
Middlesex Dunstable Low Low
Plymouth Duxbury Moderate Low
Plymouth East Bridgewater High Low
Worcester East Brookfield High Low
Hampden East Longmeadow Moderate Low
Barnstable Eastham Low Low
Hampshire Easthampton Low Low
Bristol Easton Critical Low
Dukes Edgartown Remote Low
Berkshire Egremont Low Low
Franklin Erving Low Low
Essex Essex Low Low
Middlesex Everett Low Low
Bristol Fairhaven High Low
Bristol Fall River Moderate Low
Barnstable Falmouth Moderate Low
Worcester Fitchburg Low Low
Berkshire Florida Low Low
Norfolk Foxborough Moderate Low
Middlesex Framingham Critical Low
Norfolk Franklin Moderate Low
Bristol Freetown Critical Low
Worcester Gardner Moderate Low
Essex Georgetown Moderate Low
Franklin Gill Low Low
Essex Gloucester Low Low
Hampshire Goshen Low Low
Dukes Gosnold Remote Low
Worcester Grafton Critical Low
Hampshire Granby Moderate Low
Hampden Granville Low Low
Berkshire Great Barrington Low Low
Franklin Greenfield Low Low
Middlesex Groton Low Low
Essex Groveland Moderate Low
Hampshire Hadley Moderate Low
Plymouth Halifax High Moderate
Essex Hamilton Low Low
Hampden Hampden Moderate Low
Berkshire Hancock Low Low
Plymouth Hanover Moderate Low
Plymouth Hanson Moderate Low
Worcester Hardwick Moderate Low
Worcester Harvard Moderate Low
Barnstable Harwich Low Low
Hampshire Hatfield Low Low
Essex Haverhill Moderate Low
Franklin Hawley Low Low
Franklin Heath Critical Low
Plymouth Hingham Moderate Low
Berkshire Hinsdale Low Low
Norfolk Holbrook Moderate Low
Worcester Holden Moderate Low
Hampden Holland Moderate Low
Middlesex Holliston Critical Low
Hampden Holyoke Moderate Low
Worcester Hopedale Critical Low
Middlesex Hopkinton Critical Low
Worcester Hubbardston Moderate Low
Middlesex Hudson High Low
Plymouth Hull Low Low
Hampshire Huntington Low Low
Essex Ipswich Low Low
Plymouth Kingston Moderate Moderate
Plymouth Lakeville Critical Low
Worcester Lancaster Moderate Low
Berkshire Lanesborough Low Low
Essex Lawrence High Low
Berkshire Lee Low Low
Worcester Leicester Moderate Low
Berkshire Lenox Low Low
Worcester Leominster Moderate Low
Franklin Leverett Low Low
Middlesex Lexington Low Low
Franklin Leyden Moderate Low
Middlesex Lincoln Moderate Low
Middlesex Littleton Low Low
Hampden Longmeadow Moderate Low
Middlesex Lowell Low Low
Hampden Ludlow Moderate Low
Worcester Lunenburg Low Low
Essex Lynn Low Low
Essex Lynnfield Low Low
Middlesex Malden Low Low
Essex Manchester Low Low
Bristol Mansfield Moderate Low
Essex Marblehead Low Low
Plymouth Marion Critical Low
Middlesex Marlborough Critical Low
Plymouth Marshfield Moderate Low
Barnstable Mashpee Low Low
Plymouth Mattapoisett High Low
Middlesex Maynard High Low
Norfolk Medfield Critical Low
Middlesex Medford Low Low
Norfolk Medway High Low
Middlesex Melrose Low Low
Worcester Mendon Critical Low
Essex Merrimac Moderate Low
Essex Methuen Critical Low
Plymouth Middleborough Critical Moderate
Hampshire Middlefield Low Low
Essex Middleton Low Low
Worcester Milford Critical Low
Worcester Millbury High Low
Norfolk Millis High Low
Worcester Millville High Low
Norfolk Milton Low Low
Franklin Monroe Low Low
Hampden Monson Moderate Low
Franklin Montague Low Low
Berkshire Monterey Low Low
Hampden Montgomery Low Low
Berkshire Mount Washington Low Low
Essex Nahant Low Low
Nantucket Nantucket Remote Low
Middlesex Natick Moderate Low
Norfolk Needham Low Low
Berkshire New Ashford Low Low
Bristol New Bedford Critical Low
Worcester New Braintree Moderate Low
Berkshire New Marlborough Low Low
Franklin New Salem Moderate Low
Essex Newbury Low Low
Essex Newburyport Low Low
Middlesex Newton Low Moderate
Norfolk Norfolk Moderate Low
Berkshire North Adams Low Low
Essex North Andover Moderate Low
Bristol North Attleborough Moderate Low
Worcester North Brookfield High Low
Middlesex North Reading Low Low
Hampshire Northampton Low Low
Worcester Northborough Critical Low
Worcester Northbridge Critical Low
Franklin Northfield Low Low
Bristol Norton Critical Low
Plymouth Norwell Moderate Low
Norfolk Norwood Moderate Low
Dukes Oak Bluffs Remote Low
Worcester Oakham Moderate Low
Franklin Orange Moderate Low
Barnstable Orleans Low Low
Berkshire Otis Low Low
Worcester Oxford High Low
Hampden Palmer Moderate Low
Worcester Paxton Moderate Low
Essex Peabody Low Low
Hampshire Pelham Moderate Low
Plymouth Pembroke Moderate Low
Middlesex Pepperell Low Low
Berkshire Peru Low Low
Worcester Petersham Moderate Low
Worcester Phillipston Moderate Low
Berkshire Pittsfield Low Low
Hampshire Plainfield Low Low
Norfolk Plainville Moderate Low
Plymouth Plymouth Moderate Low
Plymouth Plympton High Moderate
Worcester Princeton Moderate Low
Barnstable Provincetown Low Low
Norfolk Quincy Low Low
Norfolk Randolph Moderate Low
Bristol Raynham Critical Low
Middlesex Reading Low Low
Bristol Rehoboth High Low
Suffolk Revere Low Low
Berkshire Richmond Low Low
Plymouth Rochester Critical Low
Plymouth Rockland Moderate Low
Essex Rockport Low Low
Franklin Rowe Moderate Low
Essex Rowley Moderate Low
Worcester Royalston Low Low
Hampden Russell Low Low
Worcester Rutland Moderate Low
Essex Salem Low Low
Essex Salisbury Moderate Low
Berkshire Sandisfield Low Low
Barnstable Sandwich Low Low
Essex Saugus Low Low
Berkshire Savoy Low Low
Plymouth Scituate Moderate Low
Bristol Seekonk Moderate Low
Norfolk Sharon Moderate Low
Berkshire Sheffield Low Low
Franklin Shelburne Moderate Low
Middlesex Sherborn High Low
Middlesex Shirley Moderate Low
Worcester Shrewsbury Critical Low
Franklin Shutesbury Low Low
Bristol Somerset Moderate Low
Middlesex Somerville Low Moderate
Hampshire South Hadley Moderate Low
Hampshire Southampton Low Low
Worcester Southborough Critical Low
Worcester Southbridge Moderate Low
Hampden Southwick Low Low
Worcester Spencer Moderate Low
Hampden Springfield Moderate Low
Worcester Sterling Moderate Low
Berkshire Stockbridge Low Low
Middlesex Stoneham Low Low
Norfolk Stoughton Moderate Low
Middlesex Stow High Low
Worcester Sturbridge High Low
Middlesex Sudbury Critical Low
Franklin Sunderland Low Low
Worcester Sutton High Low
Essex Swampscott Low Low
Bristol Swansea Moderate Low
Bristol Taunton High Low
Worcester Templeton Moderate Low
Middlesex Tewksbury Moderate Low
Dukes Tisbury Remote Low
Hampden Tolland Low Low
Essex Topsfield Low Low
Middlesex Townsend Low Low
Barnstable Truro Moderate Low
Middlesex Tyngsborough Low Low
Berkshire Tyringham Low Low
Worcester Upton Critical Low
Worcester Uxbridge Critical Low
Middlesex Wakefield Low Low
Hampden Wales Moderate Low
Norfolk Walpole High Low
Middlesex Waltham Low Low
Hampshire Ware Moderate Low
Plymouth Wareham Critical Low
Worcester Warren High Low
Franklin Warwick Low Low
Berkshire Washington Low Low
Middlesex Watertown Low Moderate
Middlesex Wayland High Low
Worcester Webster High Low
Norfolk Wellesley Low Low
Barnstable Wellfleet Moderate Low
Franklin Wendell Low Low
Essex Wenham Low Low
Worcester West Boylston Moderate Low
Plymouth West Bridgewater High Low
Worcester West Brookfield High Low
Essex West Newbury Moderate Low
Hampden West Springfield Moderate Low
Berkshire West Stockbridge Low Low
Dukes West Tisbury Remote Low
Worcester Westborough Critical Low
Hampden Westfield Low Low
Middlesex Westford Low Low
Hampshire Westhampton Low Low
Worcester Westminster Moderate Low
Middlesex Weston Moderate Low
Bristol Westport Moderate Low
Norfolk Westwood Moderate Low
Norfolk Weymouth Moderate Low
Franklin Whately Low Low
Plymouth Whitman High Low
Hampden Wilbraham Moderate Low
Hampshire Williamsburg Low Low
Berkshire Williamstown Low Low
Middlesex Wilmington Low Low
Worcester Winchendon Low Low
Middlesex Winchester Low Low
Berkshire Windsor Low Low
Suffolk Winthrop Low Low
Middlesex Woburn Low Low
Worcester Worcester Moderate Moderate
Hampshire Worthington Low Low
Norfolk Wrentham Moderate Low
Barnstable Yarmouth Low Low

Arbovirus results summary

  Mosquito samples positive Animals positive Humans positive
WNV 72 0 1
EEE 414 8 8

Human detection of EEE/WNV

County name Age Onset Virus Result Presentation
Plymouth  61 - 70 8/4/2019 EEE Encephalitis
Worcester 21 - 30 7/30/2019 EEE Meningitis
Hampden 71-80 8/16/2019 EEE Encephalitis
Bristol 51-60 8/10/2019 EEE Meningoencephalitis
Middlesex 71-80 8/31/2019 EEE Meningoencephalitis
Worcester 61-70 9/1/2019 EEE Meningoencephalitis
Middlesex <18 9/1/2019 EEE Encephalitis
Middlesex 61-70 9/1/2019 WNV Meningoencephalitis
Bristol 51-60 9/6/2019 EEE Encephalitis

Animal detection of EEE/WNV

County Name City/Town Onset Virus Result Species
Bristol Norton 8/11/2019 EEE Goat
Worcester Mendon 8/16/2019 EEE Horse
Worcester Uxbridge 8/22/2019 EEE Horse
Essex Methuen 8/22/2019 EEE Horse
Norfolk Medfield 8/24/2019 EEE Horse
Middlesex Holliston 8/23/2019 EEE Horse
Worcester Brookfield 8/27/2019 EEE Horse
Worcester Douglas 8/23/2019 EEE Horse

*A horse with EEE originally thought to be from Granby was exposed out of state and is no longer included in this list.

Mosquito detection of EEE/WNV

County City Date Collected Species Agents
Suffolk Boston 7/3/2019 Culex pipiens/restuans complex WNV
Bristol Easton 7/15/2019 Culiseta melanura EEE
Bristol Freetown 7/15/2019 Culiseta melanura EEE
Bristol New Bedford 7/15/2019 Culiseta melanura EEE
Bristol Fairhaven 7/17/2019 Culex pipiens/restuans complex EEE
Berkshire Pittsfield 7/18/2019 Culex pipiens/restuans complex WNV
Bristol New Bedford 7/22/2019 Aedes vexans EEE
Plymouth Carver 7/22/2019 Coquillettidia perturbans EEE
Plymouth Halifax 7/22/2019 Coquillettidia perturbans WNV
Plymouth Halifax 7/22/2019 Coquillettidia perturbans EEE
Plymouth Halifax 7/22/2019 Coquillettidia perturbans EEE
Bristol New Bedford 7/22/2019 Coquillettidia perturbans EEE
Bristol New Bedford 7/22/2019 Coquillettidia perturbans EEE
Bristol New Bedford 7/22/2019 Coquillettidia perturbans EEE
Plymouth Kingston 7/22/2019 Culex pipiens/restuans complex WNV
Plymouth Lakeville 7/22/2019 Culex salinarius EEE
Plymouth Carver 7/22/2019 Culiseta melanura WNV
Plymouth Carver 7/22/2019 Culiseta melanura EEE
Plymouth Carver 7/22/2019 Culiseta melanura EEE
Bristol Easton 7/22/2019 Culiseta melanura WNV
Bristol Easton 7/22/2019 Culiseta melanura WNV
Plymouth Halifax 7/22/2019 Culiseta melanura EEE
Plymouth Halifax 7/22/2019 Culiseta melanura EEE
Plymouth Halifax 7/22/2019 Culiseta melanura WNV
Plymouth Halifax 7/22/2019 Culiseta melanura WNV
Plymouth Halifax 7/22/2019 Culiseta melanura WNV
Bristol New Bedford 7/22/2019 Culiseta melanura EEE
Bristol New Bedford 7/22/2019 Culiseta melanura EEE
Bristol New Bedford 7/22/2019 Culiseta melanura EEE
Bristol Rehoboth 7/22/2019 Culiseta melanura EEE
Bristol Rehoboth 7/22/2019 Culiseta melanura EEE
Bristol Rehoboth 7/22/2019 Culiseta melanura EEE
Bristol Rehoboth 7/22/2019 Culiseta melanura EEE
Bristol Rehoboth 7/22/2019 Culiseta melanura EEE
Bristol Rehoboth 7/22/2019 Culiseta melanura EEE
Bristol Freetown 7/23/2019 Coquillettidia perturbans EEE
Plymouth Lakeville 7/23/2019 Coquillettidia perturbans EEE
Plymouth Lakeville 7/23/2019 Coquillettidia perturbans EEE
Plymouth Mattapoisett 7/23/2019 Coquillettidia perturbans EEE
Plymouth Whitman 7/23/2019 Culex pipiens/restuans complex WNV
Plymouth Bridgewater 7/23/2019 Culiseta melanura EEE
Plymouth Bridgewater 7/23/2019 Culiseta melanura EEE
Bristol Dighton 7/23/2019 Culiseta melanura EEE
Bristol Freetown 7/23/2019 Culiseta melanura EEE
Plymouth Mattapoisett 7/23/2019 Culiseta melanura EEE
Plymouth Rochester 7/25/2019 Coquillettidia perturbans EEE
Plymouth Mattapoisett 7/25/2019 Culiseta melanura EEE
Plymouth Rochester 7/25/2019 Culiseta melanura EEE
Plymouth Rochester 7/25/2019 Culiseta melanura EEE
Worcester Worcester 7/26/2019 Culex species WNV
Plymouth Lakeville 7/26/2019 Culiseta melanura EEE
Bristol New Bedford 7/26/2019 Culiseta melanura EEE
Bristol New Bedford 7/26/2019 Culiseta melanura EEE
Bristol New Bedford 7/26/2019 Culiseta melanura EEE
Plymouth Carver 7/27/2019 Coquillettidia perturbans EEE
Bristol Easton 7/27/2019 Coquillettidia perturbans EEE
Bristol Easton 7/27/2019 Coquillettidia perturbans EEE
Bristol New Bedford 7/27/2019 Culex salinarius EEE
Bristol Raynham 7/27/2019 Culex salinarius EEE
Plymouth Carver 7/27/2019 Culiseta melanura EEE
Plymouth Carver 7/27/2019 Culiseta melanura EEE
Bristol Easton 7/27/2019 Culiseta melanura EEE
Bristol Easton 7/27/2019 Culiseta melanura EEE
Bristol Easton 7/27/2019 Culiseta melanura EEE
Bristol New Bedford 7/27/2019 Culiseta melanura EEE
Bristol New Bedford 7/27/2019 Culiseta melanura EEE
Bristol Raynham 7/27/2019 Culiseta melanura EEE
Bristol Raynham 7/27/2019 Culiseta melanura EEE
Bristol Raynham 7/27/2019 Culiseta melanura EEE
Plymouth Carver 7/29/2019 Coquillettidia perturbans WNV
Plymouth Carver 7/29/2019 Coquillettidia perturbans EEE
Plymouth Carver 7/29/2019 Coquillettidia perturbans EEE
Plymouth Carver 7/29/2019 Coquillettidia perturbans EEE
Plymouth Carver 7/29/2019 Coquillettidia perturbans EEE
Plymouth Carver 7/29/2019 Coquillettidia perturbans EEE
Plymouth Halifax 7/29/2019 Coquillettidia perturbans WNV
Plymouth Kingston 7/29/2019 Coquillettidia perturbans EEE
Plymouth Kingston 7/29/2019 Coquillettidia perturbans EEE
Bristol New Bedford 7/29/2019 Coquillettidia perturbans EEE
Bristol New Bedford 7/29/2019 Coquillettidia perturbans EEE
Plymouth Carver 7/29/2019 Culex salinarius EEE
Plymouth Lakeville 7/29/2019 Culex salinarius EEE
Bristol Raynham 7/29/2019 Culex salinarius EEE
Plymouth Carver 7/29/2019 Culiseta melanura EEE
Plymouth Carver 7/29/2019 Culiseta melanura EEE
Plymouth Carver 7/29/2019 Culiseta melanura EEE
Plymouth Carver 7/29/2019 Culiseta melanura EEE
Plymouth Carver 7/29/2019 Culiseta melanura WNV
Plymouth Carver 7/29/2019 Culiseta melanura EEE
Plymouth Carver 7/29/2019 Culiseta melanura EEE
Plymouth Halifax 7/29/2019 Culiseta melanura WNV
Plymouth Kingston 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Culiseta melanura EEE
Bristol Raynham 7/29/2019 Culiseta melanura EEE
Bristol Raynham 7/29/2019 Culiseta melanura EEE
Bristol Raynham 7/29/2019 Culiseta melanura EEE
Bristol Rehoboth 7/29/2019 Culiseta melanura EEE
Bristol Rehoboth 7/29/2019 Culiseta melanura EEE
Bristol Rehoboth 7/29/2019 Culiseta melanura EEE
Bristol New Bedford 7/29/2019 Ochlerotatus canadensis EEE
Bristol Freetown 7/30/2019 Aedes vexans EEE
Plymouth Marion 7/30/2019 Aedes vexans EEE
Plymouth Middleborough 7/30/2019 Aedes vexans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Easton 7/30/2019 Coquillettidia perturbans EEE
Bristol Freetown 7/30/2019 Coquillettidia perturbans EEE
Plymouth Marion 7/30/2019 Coquillettidia perturbans EEE
Plymouth Marion 7/30/2019 Coquillettidia perturbans EEE
Plymouth Marion 7/30/2019 Coquillettidia perturbans EEE
Plymouth Middleborough 7/30/2019 Coquillettidia perturbans EEE
Plymouth Middleborough 7/30/2019 Coquillettidia perturbans EEE
Plymouth Middleborough 7/30/2019 Coquillettidia perturbans EEE
Plymouth Middleborough 7/30/2019 Coquillettidia perturbans WNV
Plymouth Middleborough 7/30/2019 Coquillettidia perturbans EEE
Bristol Raynham 7/30/2019 Coquillettidia perturbans EEE
Bristol Raynham 7/30/2019 Coquillettidia perturbans EEE
Plymouth Rochester 7/30/2019 Coquillettidia perturbans EEE
Plymouth Rochester 7/30/2019 Coquillettidia perturbans EEE
Suffolk Boston 7/30/2019 Culex pipiens/restuans complex WNV
Suffolk Boston 7/30/2019 Culex pipiens/restuans complex WNV
Franklin Deerfield 7/30/2019 Culex pipiens/restuans complex WNV
Barnstable Falmouth 7/30/2019 Culex pipiens/restuans complex EEE
Middlesex Framingham 7/30/2019 Culex pipiens/restuans complex WNV
Middlesex Framingham 7/30/2019 Culex pipiens/restuans complex WNV
Middlesex Framingham 7/30/2019 Culex pipiens/restuans complex WNV
Middlesex Framingham 7/30/2019 Culex pipiens/restuans complex WNV
Plymouth Pembroke 7/30/2019 Culex pipiens/restuans complex WNV
Bristol Easton 7/30/2019 Culex salinarius EEE
Bristol Easton 7/30/2019 Culex salinarius EEE
Plymouth Marion 7/30/2019 Culex salinarius EEE
Plymouth Marion 7/30/2019 Culex salinarius EEE
Plymouth Middleborough 7/30/2019 Culex salinarius EEE
Plymouth Middleborough 7/30/2019 Culex salinarius EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Easton 7/30/2019 Culiseta melanura EEE
Bristol Freetown 7/30/2019 Culiseta melanura EEE
Bristol Freetown 7/30/2019 Culiseta melanura EEE
Plymouth Marion 7/30/2019 Culiseta melanura EEE
Plymouth Marion 7/30/2019 Culiseta melanura EEE
Plymouth Middleborough 7/30/2019 Culiseta melanura EEE
Plymouth Middleborough 7/30/2019 Culiseta melanura EEE
Plymouth Middleborough 7/30/2019 Culiseta melanura EEE
Plymouth Middleborough 7/30/2019 Culiseta melanura EEE
Plymouth Middleborough 7/30/2019 Culiseta melanura EEE
Plymouth Middleborough 7/30/2019 Culiseta melanura WNV
Plymouth Middleborough 7/30/2019 Culiseta melanura EEE
Plymouth Middleborough 7/30/2019 Culiseta melanura EEE
Plymouth Pembroke 7/30/2019 Culiseta melanura EEE
Bristol Raynham 7/30/2019 Culiseta melanura EEE
Plymouth Rochester 7/30/2019 Culiseta melanura EEE
Bristol Taunton 7/30/2019 Culiseta melanura WNV
Bristol Easton 7/30/2019 Ochlerotatus canadensis EEE
Bristol Freetown 7/30/2019 Ochlerotatus canadensis EEE
Plymouth Marion 7/30/2019 Ochlerotatus canadensis EEE
Plymouth Middleborough 7/30/2019 Ochlerotatus canadensis EEE
Plymouth Middleborough 7/30/2019 Ochlerotatus canadensis EEE
Plymouth Middleborough 7/30/2019 Ochlerotatus canadensis EEE
Worcester Southborough 7/31/2019 Coquillettidia perturbans EEE
Worcester Southborough 7/31/2019 Coquillettidia perturbans EEE
Norfolk Brookline 7/31/2019 Culex pipiens/restuans complex WNV
Norfolk Brookline 7/31/2019 Culex pipiens/restuans complex WNV
Middlesex Stow 7/31/2019 Culex species WNV
Bristol Acushnet 7/31/2019 Culiseta melanura EEE
Bristol Fall River 7/31/2019 Culiseta melanura EEE
Bristol Fall River 7/31/2019 Culiseta melanura EEE
Worcester East Brookfield 8/1/2019 Culex pipiens/restuans complex EEE
Barnstable Truro 8/1/2019 Culex salinarius WNV
Barnstable Falmouth 8/2/2019 Coquillettidia perturbans EEE
Barnstable Falmouth 8/2/2019 Coquillettidia perturbans EEE
Worcester Westborough 8/2/2019 Coquillettidia perturbans EEE
Worcester Westborough 8/2/2019 Coquillettidia perturbans EEE
Barnstable Falmouth 8/2/2019 Culex pipiens/restuans complex EEE
Barnstable Falmouth 8/2/2019 Culiseta melanura EEE
Plymouth Wareham 8/2/2019 Coquillettidia perturbans EEE
Plymouth Wareham 8/2/2019 Coquillettidia perturbans EEE
Plymouth Wareham 8/2/2019 Coquillettidia perturbans EEE
Plymouth Wareham 8/2/2019 Coquillettidia perturbans EEE
Plymouth Wareham 8/2/2019 Coquillettidia perturbans EEE
Plymouth Wareham 8/2/2019 Coquillettidia perturbans EEE
Plymouth Wareham 8/2/2019 Culex salinarius EEE
Plymouth Wareham 8/2/2019 Culiseta melanura EEE
Plymouth Marion 8/2/2019 Coquillettidia perturbans EEE
Plymouth Marion 8/2/2019 Coquillettidia perturbans EEE
Plymouth Rochester 8/2/2019 Coquillettidia perturbans EEE
Plymouth Marion 8/2/2019 Culex salinarius EEE
Plymouth Marion 8/2/2019 Culiseta melanura EEE
Plymouth Marion 8/2/2019 Culiseta melanura EEE
Plymouth Rochester 8/2/2019 Culiseta melanura EEE
Plymouth Marion 8/2/2019 Ochlerotatus canadensis EEE
Plymouth Rochester 8/2/2019 Ochlerotatus canadensis EEE
Plymouth West Bridgewater 8/2/2019 Culiseta melanura EEE
Plymouth East Bridgewater 8/2/2019 Coquillettidia perturbans EEE
Plymouth East Bridgewater 8/2/2019 Culiseta melanura EEE
Plymouth Whitman 8/2/2019 Coquillettidia perturbans EEE
Plymouth Whitman 8/2/2019 Coquillettidia perturbans EEE
Plymouth Whitman 8/2/2019 Culex salinarius EEE
Plymouth Duxbury 8/4/2019 Culiseta melanura EEE
Plymouth Carver 8/5/2019 Coquillettidia perturbans EEE
Bristol Easton 8/5/2019 Coquillettidia perturbans EEE
Bristol Easton 8/5/2019 Coquillettidia perturbans EEE
Plymouth Kingston 8/5/2019 Coquillettidia perturbans EEE
Bristol Raynham 8/5/2019 Coquillettidia perturbans EEE
Plymouth Kingston 8/5/2019 Culex pipiens/restuans complex WNV
Plymouth Carver 8/5/2019 Culex salinarius EEE
Bristol Easton 8/5/2019 Culex salinarius EEE
Plymouth Kingston 8/5/2019 Culex salinarius EEE
Plymouth Kingston 8/5/2019 Culex salinarius EEE
Plymouth Kingston 8/5/2019 Culex salinarius EEE
Plymouth Kingston 8/5/2019 Culex salinarius EEE
Plymouth Carver 8/5/2019 Culiseta melanura EEE
Plymouth Carver 8/5/2019 Culiseta melanura EEE
Plymouth Kingston 8/5/2019 Culiseta melanura EEE
Bristol New Bedford 8/5/2019 Culiseta melanura EEE
Bristol Raynham 8/5/2019 Culiseta melanura EEE
Bristol Raynham 8/5/2019 Culiseta melanura EEE
Bristol Raynham 8/5/2019 Culiseta melanura EEE
Bristol Easton 8/5/2019 Ochlerotatus canadensis EEE
Bristol New Bedford 8/5/2019 Ochlerotatus canadensis EEE
Bristol Raynham 8/5/2019 Ochlerotatus canadensis EEE
Bristol Freetown 8/6/2019 Coquillettidia perturbans EEE
Middlesex Medford 8/6/2019 Culex pipiens/restuans complex WNV
Worcester Worcester 8/6/2019 Culex species WNV
Bristol Freetown 8/6/2019 Culiseta melanura EEE
Bristol Raynham 8/6/2019 Culiseta melanura EEE
Bristol Raynham 8/6/2019 Culiseta melanura WNV
Middlesex Hopkinton 8/6/2019 Coquillettidia perturbans EEE
Plymouth Carver 8/7/2019 Coquillettidia perturbans EEE
Bristol Dighton 8/7/2019 Coquillettidia perturbans EEE
Plymouth Lakeville 8/7/2019 Coquillettidia perturbans EEE
Bristol New Bedford 8/7/2019 Coquillettidia perturbans EEE
Plymouth Carver 8/7/2019 Culex salinarius WNV
Plymouth Carver 8/7/2019 Culex salinarius EEE
Plymouth Lakeville 8/7/2019 Culex salinarius EEE
Plymouth Lakeville 8/7/2019 Culex salinarius EEE
Bristol New Bedford 8/7/2019 Culex salinarius EEE
Norfolk Canton 8/7/2019 Culiseta melanura EEE
Plymouth Carver 8/7/2019 Culiseta melanura EEE
Plymouth Lakeville 8/7/2019 Culiseta melanura EEE
Plymouth Lakeville 8/7/2019 Culiseta melanura EEE
Bristol New Bedford 8/7/2019 Culiseta melanura EEE
Bristol Rehoboth 8/7/2019 Culiseta melanura EEE
Bristol Rehoboth 8/7/2019 Culiseta melanura EEE
Bristol Westport 8/7/2019 Culiseta melanura EEE
Plymouth Carver 8/7/2019 Ochlerotatus canadensis EEE
Bristol New Bedford 8/7/2019 Ochlerotatus canadensis EEE
Worcester Westborough 8/8/2019 Coquillettidia perturbans EEE
Worcester Westborough 8/8/2019 Coquillettidia perturbans EEE
Worcester Westborough 8/8/2019 Coquillettidia perturbans EEE
Worcester Westborough 8/8/2019 Coquillettidia perturbans EEE
Middlesex Lowell 8/9/2019 Culex species EEE
Plymouth Carver 8/12/2019 Coquillettidia perturbans EEE
Bristol Easton 8/12/2019 Coquillettidia perturbans EEE
Bristol Freetown 8/12/2019 Coquillettidia perturbans EEE
Bristol Freetown 8/12/2019 Coquillettidia perturbans EEE
Bristol Easton 8/12/2019 Culex salinarius EEE
Bristol Freetown 8/12/2019 Culex salinarius EEE
Bristol Attleboro 8/12/2019 Culiseta melanura WNV
Plymouth Carver 8/12/2019 Culiseta melanura WNV
Bristol Easton 8/12/2019 Culiseta melanura EEE
Bristol Freetown 8/12/2019 Culiseta melanura EEE
Bristol Freetown 8/12/2019 Culiseta melanura EEE
Bristol Freetown 8/12/2019 Culiseta melanura EEE
Plymouth Hanson 8/12/2019 Culiseta melanura EEE
Bristol Rehoboth 8/12/2019 Culiseta melanura EEE
Bristol Rehoboth 8/12/2019 Culiseta melanura EEE
Bristol Westport 8/12/2019 Culiseta melanura EEE
Bristol Rehoboth 8/12/2019 Ochlerotatus canadensis EEE
Bristol Westport 8/12/2019 Ochlerotatus canadensis EEE
Essex Andover 8/13/2019 Aedes vexans EEE
Essex Andover 8/13/2019 Coquillettidia perturbans EEE
Norfolk Avon 8/13/2019 Coquillettidia perturbans EEE
Norfolk Avon 8/13/2019 Coquillettidia perturbans EEE
Norfolk Canton 8/13/2019 Coquillettidia perturbans EEE
Norfolk Canton 8/13/2019 Coquillettidia perturbans EEE
Barnstable Falmouth 8/13/2019 Coquillettidia perturbans EEE
Plymouth Halifax 8/13/2019 Coquillettidia perturbans WNV
Plymouth Hanson 8/13/2019 Coquillettidia perturbans EEE
Plymouth Hanson 8/13/2019 Coquillettidia perturbans EEE
Plymouth Kingston 8/13/2019 Coquillettidia perturbans EEE
Plymouth Kingston 8/13/2019 Coquillettidia perturbans EEE
Plymouth Lakeville 8/13/2019 Coquillettidia perturbans WNV
Plymouth Lakeville 8/13/2019 Coquillettidia perturbans EEE
Plymouth Middleborough 8/13/2019 Coquillettidia perturbans EEE
Plymouth Middleborough 8/13/2019 Coquillettidia perturbans EEE
Plymouth Middleborough 8/13/2019 Coquillettidia perturbans EEE
Bristol New Bedford 8/13/2019 Coquillettidia perturbans EEE
Plymouth Rochester 8/13/2019 Coquillettidia perturbans EEE
Plymouth Rochester 8/13/2019 Coquillettidia perturbans EEE
Norfolk Walpole 8/13/2019 Coquillettidia perturbans EEE
Norfolk Walpole 8/13/2019 Coquillettidia perturbans EEE
Norfolk Walpole 8/13/2019 Coquillettidia perturbans EEE
Norfolk Weymouth 8/13/2019 Coquillettidia perturbans EEE
Barnstable Bourne 8/13/2019 Culex pipiens/restuans complex EEE
Middlesex Cambridge 8/13/2019 Culex pipiens/restuans complex WNV
Middlesex Cambridge 8/13/2019 Culex pipiens/restuans complex WNV
Middlesex Newton 8/13/2019 Culex pipiens/restuans complex WNV
Middlesex Newton 8/13/2019 Culex pipiens/restuans complex WNV
Middlesex Newton 8/13/2019 Culex pipiens/restuans complex WNV
Plymouth Hanson 8/13/2019 Culex salinarius EEE
Plymouth Kingston 8/13/2019 Culex salinarius EEE
Plymouth Kingston 8/13/2019 Culex salinarius EEE
Plymouth Middleborough 8/13/2019 Culex salinarius EEE
Plymouth Rochester 8/13/2019 Culex salinarius EEE
Norfolk Walpole 8/13/2019 Culex salinarius EEE
Norfolk Canton 8/13/2019 Culiseta melanura EEE
Norfolk Canton 8/13/2019 Culiseta melanura EEE
Norfolk Canton 8/13/2019 Culiseta melanura WNV
Plymouth Carver 8/13/2019 Culiseta melanura EEE
Barnstable Falmouth 8/13/2019 Culiseta melanura EEE
Plymouth Halifax 8/13/2019 Culiseta melanura WNV
Plymouth Hanson 8/13/2019 Culiseta melanura EEE
Plymouth Hanson 8/13/2019 Culiseta melanura EEE
Plymouth Middleborough 8/13/2019 Culiseta melanura EEE
Plymouth Middleborough 8/13/2019 Culiseta melanura EEE
Bristol New Bedford 8/13/2019 Culiseta melanura EEE
Plymouth Plympton 8/13/2019 Culiseta melanura EEE
Plymouth Rochester 8/13/2019 Culiseta melanura EEE
Plymouth Rochester 8/13/2019 Culiseta melanura EEE
Bristol Westport 8/13/2019 Culiseta melanura EEE
Bristol Westport 8/13/2019 Culiseta melanura EEE
Norfolk Weymouth 8/13/2019 Culiseta melanura EEE
Bristol New Bedford 8/14/2019 Culex pipiens/restuans complex WNV
Bristol Seekonk 8/15/2019 Culex pipiens/restuans complex WNV
Bristol Attleboro 8/16/2019 Culex pipiens/restuans complex WNV
Hampshire Hadley 8/16/2019 Culex pipiens/restuans complex WNV
Hampden Palmer 8/16/2019 Culex pipiens/restuans complex WNV
Bristol Dighton 8/16/2019 Culiseta melanura EEE
Worcester Grafton 8/16/2019 Coquillettidia perturbans EEE
Worcester Grafton 8/16/2019 Coquillettidia perturbans EEE
Worcester Upton 8/16/2019 Culiseta melanura EEE
Worcester Harvard 8/17/2019 Coquillettidia perturbans EEE
Middlesex Shirley 8/17/2019 Coquillettidia perturbans EEE
Middlesex Shirley 8/17/2019 Culex salinarius EEE
Bristol Easton 8/17/2019 Culiseta melanura EEE
Bristol Norton 8/17/2019 Culiseta melanura EEE
Bristol Norton 8/17/2019 Culiseta melanura WNV
Bristol Raynham 8/17/2019 Culiseta melanura EEE
Bristol Raynham 8/17/2019 Ochlerotatus canadensis EEE
Worcester Bolton 8/17/2019 Coquillettidia perturbans EEE
Worcester Bolton 8/17/2019 Culex salinarius EEE
Essex Andover 8/19/2019 Coquillettidia perturbans EEE
Essex Andover 8/19/2019 Coquillettidia perturbans EEE
Essex Lynn 8/19/2019 Culex pipiens WNV
Essex Boxford 8/19/2019 Culiseta melanura EEE
Middlesex Bedford 8/20/2019 Coquillettidia perturbans EEE
Worcester Leominster 8/20/2019 Culex species WNV
Bristol Rehoboth 8/20/2019 Culiseta melanura EEE
Worcester Worcester 8/20/2019 Culex species WNV
Worcester Worcester 8/20/2019 Culex species WNV
Norfolk Canton 8/20/2019 Culiseta melanura EEE
Plymouth Carver 8/20/2019 Coquillettidia perturbans EEE
Bristol Easton 8/20/2019 Coquillettidia perturbans EEE
Plymouth Carver 8/20/2019 Culex salinarius EEE
Bristol Easton 8/20/2019 Culex salinarius EEE
Bristol Raynham 8/20/2019 Culex salinarius EEE
Plymouth Carver 8/20/2019 Culiseta melanura EEE
Bristol Easton 8/20/2019 Culiseta melanura EEE
Bristol Raynham 8/20/2019 Culiseta melanura EEE
Bristol Raynham 8/20/2019 Culiseta melanura EEE
Plymouth Carver 8/20/2019 Ochlerotatus canadensis EEE
Plymouth Lakeville 8/20/2019 Coquillettidia perturbans EEE
Bristol Dartmouth 8/20/2019 Culex salinarius EEE
Plymouth Wareham 8/20/2019 Culex salinarius EEE
Bristol Dartmouth 8/20/2019 Culiseta melanura EEE
Bristol Dartmouth 8/20/2019 Culiseta melanura EEE
Bristol Dartmouth 8/20/2019 Ochlerotatus canadensis EEE
Worcester Southborough 8/21/2019 Aedes vexans EEE
Worcester Southborough 8/21/2019 Aedes vexans EEE
Plymouth Bridgewater 8/21/2019 Coquillettidia perturbans EEE
Plymouth Duxbury 8/21/2019 Coquillettidia perturbans EEE
Plymouth Rochester 8/21/2019 Coquillettidia perturbans EEE
Worcester Southborough 8/21/2019 Coquillettidia perturbans EEE
Worcester Southborough 8/21/2019 Coquillettidia perturbans EEE
Worcester Southborough 8/21/2019 Coquillettidia perturbans EEE
Worcester Southborough 8/21/2019 Coquillettidia perturbans EEE
Worcester Southborough 8/21/2019 Coquillettidia perturbans EEE
Plymouth Duxbury 8/21/2019 Culex salinarius EEE
Plymouth Middleborough 8/21/2019 Culex salinarius EEE
Middlesex Holliston 8/21/2019 Culex species WNV
Middlesex Hudson 8/21/2019 Culex species EEE
Middlesex Marlborough 8/21/2019 Culex species EEE
Worcester Southborough 8/21/2019 Culex species EEE
Plymouth Duxbury 8/21/2019 Culiseta melanura EEE
Plymouth Duxbury 8/21/2019 Culiseta melanura EEE
Plymouth Middleborough 8/21/2019 Culiseta melanura EEE
Plymouth Rochester 8/21/2019 Culiseta melanura EEE
Plymouth Rochester 8/21/2019 Culiseta melanura EEE
Plymouth Rochester 8/21/2019 Culiseta melanura EEE
Barnstable Truro 8/22/2019 Coquillettidia perturbans EEE
Middlesex Littleton 8/22/2019 Culex species WNV
Worcester Auburn 8/23/2019 Culex species WNV
Norfolk Cohasset 8/24/2019 Coquillettidia perturbans EEE
Plymouth Duxbury 8/24/2019 Culex salinarius EEE
Plymouth Duxbury 8/24/2019 Culiseta melanura EEE
Plymouth Duxbury 8/24/2019 Culiseta melanura EEE
Plymouth Halifax 8/24/2019 Culiseta melanura EEE
Plymouth Norwell 8/24/2019 Culiseta melanura EEE
Plymouth Scituate 8/24/2019 Culiseta melanura EEE
Middlesex Sherborn 8/25/2019 Coquillettidia perturbans EEE
Worcester Uxbridge 8/25/2019 Coquillettidia perturbans EEE
Worcester Mendon 8/25/2019 Culex salinarius EEE
Worcester Douglas 8/25/2019 Culiseta melanura EEE
Worcester Mendon 8/25/2019 Culiseta melanura EEE
Worcester Uxbridge 8/25/2019 Culiseta melanura EEE
Worcester Uxbridge 8/25/2019 Ochlerotatus canadensis EEE
Bristol Dartmouth 8/26/2019 Culiseta melanura EEE
Bristol Easton 8/26/2019 Culiseta melanura EEE
Bristol Easton 8/26/2019 Culiseta melanura EEE
Bristol Rehoboth 8/26/2019 Culiseta melanura EEE
Bristol Dartmouth 8/26/2019 Ochlerotatus canadensis EEE
Bristol Easton 8/26/2019 Ochlerotatus canadensis EEE
Essex Methuen 8/27/2019 Coquillettidia perturbans EEE
Suffolk Boston 8/27/2019 Culex pipiens/restuans complex WNV
Norfolk Dover 8/27/2019 Culex pipiens/restuans complex EEE
Hampden Agawam 8/28/2019 Coquillettidia perturbans EEE
Hampden Agawam 8/28/2019 Coquillettidia perturbans EEE
Worcester Shrewsbury 8/28/2019 Coquillettidia perturbans EEE
Worcester Southborough 8/28/2019 Coquillettidia perturbans EEE
Worcester Southborough 8/28/2019 Coquillettidia perturbans EEE
Worcester Southborough 8/28/2019 Coquillettidia perturbans EEE
Hampden Agawam 8/28/2019 Culiseta melanura EEE
Middlesex Holliston 8/28/2019 Culiseta melanura EEE
Worcester East Brookfield 8/29/2019 Coquillettidia perturbans EEE
Middlesex Burlington 8/29/2019 Culex pipiens/restuans complex EEE
Middlesex Burlington 8/29/2019 Culex pipiens/restuans complex WNV
Bristol Somerset 8/29/2019 Culex pipiens/restuans complex WNV
Hampden East Longmeadow 8/29/2019 Culex salinarius EEE
Worcester East Brookfield 8/29/2019 Culiseta melanura EEE
Hampden East Longmeadow 8/29/2019 Culiseta melanura EEE
Worcester Millville 8/29/2019 Culiseta melanura EEE
Worcester Uxbridge 8/29/2019 Culiseta melanura EEE
Barnstable Wellfleet 8/29/2019 Coquillettidia perturbans EEE
Essex West Newbury 9/3/2019 Aedes vexans EEE
Essex West Newbury 9/3/2019 Coquillettidia perturbans EEE
Essex Lynn 9/4/2019 Culex pipiens WNV
Bristol Freetown 9/4/2019 Culiseta melanura WNV
Plymouth Mattapoisett 9/4/2019 Culiseta melanura EEE
Bristol Raynham 9/4/2019 Culex salinarius EEE
Bristol Raynham 9/4/2019 Culiseta melanura EEE
Bristol Rehoboth 9/4/2019 Culiseta melanura EEE
Bristol Rehoboth 9/4/2019 Ochlerotatus canadensis EEE
Suffolk Boston 9/5/2019 Culex pipiens/restuans complex WNV
Worcester Grafton 9/8/2019 Coquillettidia perturbans EEE
Worcester Grafton 9/8/2019 Culiseta melanura EEE
Essex Nahant 9/9/2019 Culex pipiens WNV
Suffolk Revere 9/9/2019 Culex salinarius WNV
Barnstable Bourne 9/10/2019 Culex pipiens/restuans complex EEE
Barnstable Truro 9/10/2019 Culiseta melanura EEE
Plymouth Carver 9/10/2019 Coquillettidia perturbans EEE
Plymouth Carver 9/10/2019 Culiseta melanura EEE
Plymouth Carver 9/10/2019 Ochlerotatus canadensis EEE
Bristol Easton 9/10/2019 Culiseta melanura EEE
Bristol Easton 9/10/2019 Culiseta melanura EEE
Bristol Easton 9/10/2019 Ochlerotatus canadensis EEE
Worcester Holden 9/11/2019 Coquillettidia perturbans EEE
Worcester Sterling 9/11/2019 Culiseta melanura WNV
Worcester Uxbridge 9/11/2019 Culiseta melanura WNV
Worcester Uxbridge 9/11/2019 Ochlerotatus canadensis WNV
Hampden Brimfield 9/12/2019 Coquillettidia perturbans EEE
Worcester Holden 9/12/2019 Coquillettidia perturbans EEE
Hampden Brimfield 9/12/2019 Culiseta melanura EEE
Worcester Mendon 9/12/2019 Culiseta melanura WNV
Last updated: September 12, 2019
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