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Massachusetts Arbovirus Results Summary

Real-time results for EEE and WNV. Residents should take personal preventative actions like using repellents and avoiding peak mosquito activity.

MDPH has reported the first human case of EEE from Plymouth County and EEE positive mosquito samples have been detected in Franklin, Middlesex, Norfolk and Plymouth Counties, Risk levels have been increased in these regions. Please check back throughout the season to view risk levels and findings of EEE and WNV.

Table of Contents

Human detection of EEE/WNV

County name Age Onset Virus Result Presentation
Plymouth 11 - 20 7/20/2020 EEE Meningoencephalitis
Middlesex 51 - 60 8/02/2020 WNV Fever

Animal detection of EEE/WNV

County name Age Onset Virus Result Species
         

Mosquito detection of EEE/WNV

County   City Date Collected Species Agents
Franklin   Orange 7/01/2020 Coquillettidia perturbans EEE
Franklin   Wendell 7/05/2020 Coquillettidia perturbans EEE
Middlesex   Belmont 7/07/2020 Culex pipiens / restuans complex WNV
Middlesex   Belmont 7/07/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 7/09/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 7/06/2020 Culex pipiens / restuans complex WNV
Plymouth   Carver 7/13/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/13/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/13/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/13/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/13/2020 Coquillettidia perturbans EEE
Middlesex   Medford 7/14/2020 Culex pipiens / restuans complex WNV
Middlesex   Newton 7/21/2020 Culex pipiens / restuans complex WNV
Middlesex   Newton 7/21/2020 Culex pipiens / restuans complex WNV
Middlesex   Newton 7/21/2020 Culex pipiens / restuans complex WNV
Middlesex   Newton 7/21/2020 Culex pipiens / restuans complex WNV
Middlesex   Newton 7/21/2020 Culex pipiens / restuans complex WNV
Middlesex   Newton 7/21/2020 Culex pipiens / restuans complex WNV
Norfolk   Brookline 7/21/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 7/21/2020 Culex pipiens WNV
Plymouth   Middleborough 7/21/2020 Coquillettidia perturbans EEE
Plymouth   Middleborough 7/21/2020 Coquillettidia perturbans EEE
Plymouth   Middleborough 7/21/2020 Culiseta melanura EEE
Plymouth   Middleborough 7/21/2020 Culiseta melanura EEE
Plymouth   Carver 7/27/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/27/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/27/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/27/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/27/2020 Culiseta melanura EEE
Middlesex   Arlington 7/28/2020 Culex pipiens / restuans complex WNV
Middlesex   Arlington 7/28/2020 Culex pipiens / restuans complex WNV
Middlesex   Watertown 7/28/2020 Culex pipiens / restuans complex WNV
Middlesex   Watertown 7/28/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 7/28/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 7/28/2020 Culex pipiens / restuans complex WNV
Middlesex   Pepperell 7/29/2020 Coquillettidia perturbans EEE
Plymouth   Middleborough 7/28/2020 Culiseta melanura EEE
Plymouth   Plympton 7/31/2020 Culiseta melanura EEE
Plymouth   Plympton 7/31/2020 Culiseta melanura EEE
Plymouth   Plympton 7/31/2020 Culiseta melanura EEE
Plymouth   Plympton 7/31/2020 Culiseta melanura EEE
Plymouth   Plympton 7/31/2020 Coquillettidia perturbans EEE
Plymouth   Plympton 7/31/2020 Coquillettidia perturbans EEE
Plymouth   Plympton 7/31/2020 Coquillettidia perturbans EEE
Plymouth   Kingston 7/31/2020 Coquillettidia perturbans EEE
Plymouth   Kingston 7/31/2020 Culiseta melanura EEE
Plymouth   Carver 7/31/2020 Coquillettidia perturbans EEE
Plymouth   Carver 7/31/2020 Coquillettidia perturbans EEE
Plymouth   Middleborough 7/31/2020 Coquillettidia perturbans EEE
Bristol   Attleboro 7/31/2020 Culex pipiens / restuans complex WNV
Norfolk   Needham 7/29/2020 Culex pipiens / restuans complex WNV
Plymouth   Carver 8/03/2020 Coquillettidia perturbans EEE
Plymouth   Carver 8/03/2020 Coquillettidia perturbans EEE
Plymouth   Carver 8/03/2020 Coquillettidia perturbans EEE
Plymouth   Carver 8/03/2020 Coquillettidia perturbans EEE
Plymouth   Carver 8/03/2020 Coquillettidia perturbans EEE
Plymouth   Carver 8/03/2020 Coquillettidia perturbans EEE
Plymouth   Carver 8/03/2020 Coquillettidia perturbans EEE
Plymouth   Wareham 8/03/2020 Coquillettidia perturbans EEE
Plymouth   Wareham 8/03/2020 Aedes vexans EEE
Norfolk   Canton 8/03/2020 Coquillettidia perturbans EEE
Suffolk   Boston 8/04/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 8/04/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 8/04/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 8/04/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 8/04/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 8/04/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 8/04/2020 Culex pipiens / restuans complex WNV
Suffolk   Boston 8/04/2020 Culex pipiens / restuans complex WNV
Plymouth   Hanson 8/04/2020 Coquillettidia perturbans EEE
Plymouth   Bridgewater 8/07/2020 Coquillettidia perturbans EEE
Plymouth   Bridgewater 8/07/2020 Coquillettidia perturbans EEE
Plymouth   Bridgewater 8/07/2020 Coquillettidia perturbans EEE
Plymouth   Bridgewater 8/07/2020 Coquillettidia perturbans EEE
Plymouth   Bridgewater 8/07/2020 Coquillettidia perturbans EEE
Plymouth   Bridgewater 8/07/2020 Culiseta melanura EEE
Plymouth   Plympton 8/07/2020 Culiseta melanura WNV
Plymouth   Plympton 8/07/2020 Coquillettidia perturbans WNV
Bristol   Somerset 8/06/2020 Culex pipiens / restuans complex WNV
Bristol   Somerset 8/06/2020 Culex pipiens / restuans complex WNV
Norfolk   Westwood 8/04/2020 Culex pipiens / restuans complex WNV
Norfolk   Westwood 8/04/2020 Culex pipiens / restuans complex WNV
Norfolk   Quincy 8/04/2020 Culex pipiens / restuans complex WNV

 

Date published: July 6, 2020
Last updated: August 11, 2020
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