Arboviral Surveillance

Eastern Equine Encephalitis (EEE) and West Nile Virus (WNV) are arboviral illnesses spread by the bite of an infected mosquito. Mosquito, animal, and human specimens are tested for the presence of EEE and WNV at Maine's Health and Environmental Testing Laboratory (HETL). Animal specimens may also be tested through the National Veterinary Services Laboratory (NVSL). The state of Maine organizes routine mosquito trapping at selected sites, and routinely tests those mosquitoes for disease. The mosquito trapping season runs from July to September. Maine no longer routinely tests birds.

Arboviral Surveillance Archives

2019 Maine Arboviral Positive Results

Weekly Updates

• 2019
  • October 19, 2019 Word | PDF 
  • October 12, 2019 Word | PDF 
  • October 5, 2019 Word | PDF 
  • September 28, 2019 Word | PDF 
  • September 21, 2019 Word | PDF 
  • September 14, 2019 Word | PDF 
  • September 7, 2019 Word | PDF 
  • August 31, 2019 Word | PDF 
  • August 24, 2019 Word | PDF 
  • August 17, 2019 Word | PDF 
  • August 10, 2019 Word | PDF 
  • August 3, 2019 Word | PDF 
  • July 27, 2019 Word | PDF 
  • July 20, 2019 Word | PDF 

• 2018

Resources

• Mosquito Q & A – frequently asked questions with peer-reviewed citations
• Massachusetts Arbovirus Information
• New Hampshire Arboviral Test Results
• Vermont Arboviral Surveillance
• National Arbonet Maps (provided by USGS)
• Federal CDC Site