Mosquito-borne diseases

EEE and WNV
 
Arboviral diseases, including Eastern equine encephalitis (EEE) and West Nile virus (WNV), are very serious infections that are transmitted by the bite of an infected mosquito. Although rare, these diseases have potentially severe and even fatal consequences for those who contract them.  Vermont has already detected EEE.  
 
Clinicians should be aware of the potential for human disease activity in Maine, and to consider testing for arboviral disease in patients presenting with unexplained encephalitis, meningitis or fever ≥100.4°F or 38°C during the summer and early fall.
 
For more information, see the Health Alert from July 2: http://go.usa.gov/X9MV 


Chikungunya

Chikungunya virus is also transmitted to people by mosquitoes. Outbreaks have occurred in countries in Africa, Asia, Europe, and the Indian and Pacific Oceans. In late 2013, chikungunya virus was found for the first time in the Americas on islands in the Caribbean. This week, New Hampshire reported two cases of chikungunya in people who traveled to the Caribbean.

The most common symptoms of chikungunya virus infection are fever and joint pain. Other symptoms may include headache, muscle pain, joint swelling, or rash. There is no vaccine to prevent or medicine to treat chikungunya virus infection.

Travelers can protect themselves by preventing mosquito bites. When traveling to countries with chikungunya virus, use insect repellent, wear long sleeves and pants, and stay in places with air conditioning or that use window and door screens.

For more information, visit http://www.cdc.gov/chikungunya/ 

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