Arboviral Illness Update - Manchester, NH

The NH DHHS issued a health alert on September 15 regarding detection of West Nile Virus (WNV) in a mosquito batch from Manchester, NH.  

NH Division of Public Health Services (NH DPHS) draws your attention to the following:

Key Points and Recommendations:

1. The first detection of West Nile Virus (WNV) in New Hampshire for 2015 has occurred in a mosquito batch from Manchester, NH.
2. Healthcare providers should not rely on the presence or absence of positive mosquito testing as a criterion for whether or not to test a patient for WNV or EEE.

  • Healthcare providers should consider mosquito-borne diseases, including West Nile Virus (WNV) and Eastern Equine Encephalitis (EEE), in patients with compatible clinical syndromes.
  • Laboratory testing may be arranged by calling 603-271-4496 during business hours or 1-800-852-3345 ext. 5300 after hours.
  • Forms and testing information are available at http://www.dhhs.state.nh.us/dphs/cdcs/forms.htm.

3. Residents and visitors of NH are advised to use prevention measures to avoid mosquito bites, including wearing protective clothing, applying insect repellents, and reducing environmental mosquito populations.

  • Equine vaccines are available for both EEE and WNV and should be used to protect horses.
  • Vaccines for WNV and EEE are not available for human use.
  • Prevention measures used to prevent mosquito bites are also effective for preventing tick bites.

4. Healthcare providers should report suspected and confirmed cases of mosquito-borne diseases to the Bureau of Infectious Disease Control at 603-271-4496 (after hours 1-800-852-3345 ext. 5300).

Click here for the full DHHS Health Alert.