Home About Lyme Other Tick-Borne Diseases Powassan Encephalitis
03
Feb
2012
Powassan Encephalitis Print E-mail

Powassa Ensephalitis is caused by a flavi virus, Powassan (POW), transmitted by the Ixodes cookei, Ixodes marxi, Ixodes spinipalpus, and Dermacentor andersoni ticks. May possibly be transmitted by Ixodes scapularis.

Symptoms usually begin suddenly 7to 14 days following infection, and include headache, fever, nausea and vomiting, stiff neck, and sleepiness. Later, breathing distress, tremors, confusion, seizures, coma, paralysis, and sometimes death can occur. 

The Ixodes scapularis (black legged/deer tick) transmits Powassan encephalitis.

©LDA.  Information updated, 11-1-2014.  This web site provides practical and useful information on the subject matters covered. It is distributed with the understanding that LDA is not engaged in rendering medical or other professional services. Seek professional services if necessary.

 

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