Essex County environmental health investigations

Essex Agricultural and Technical High School and North Shore Technical High School

Investigation of acquired vocal disorders such as neurological vocal tics and repetitive hiccups reported among students attending Essex Agricultural and Technical High School and North Shore Technical High School

Final Reports

• MDPH Vocal Tics Investigation Summary (November 2014) (DOC)
• Essex Agricultural and Technical School (November 2014) (DOC)
• North Shore Technical High School (November 2014) (DOC)
• Essex Agricultural and Technical School (July 2013) (DOC)

Investigation updates

• Status Update on MDPH Efforts to Investigate Reports of Neurological Vocal Tics and Other Vocal Symptoms Reported Among Students Attending Essex Agricultural and Technical High School and North Shore Technical High School - August 2013 (DOC)
• Status Update on MDPH Efforts to Investigate Reports of Neurological Vocal Tics and Other Vocal Symptoms Reported Among Students Attending Essex Agricultural and Technical High School and North Shore Technical High School - May 10, 2013 (DOC)
• Status Update on MDPH Efforts to Investigate Reports of Neurological Vocal Tics and Other Vocal Symptoms Reported Among Students Attending Essex Agricultural and Technical High School and North Shore Technical High School - February 5, 2013 (DOC)