Changes

=====Distribution=====

=====Distribution=====

Virus distribution is largely dictated by vector distribution.

Virus distribution is largely dictated by vector distribution.  EEE virus is found as far north as eastern Canada, south throughout the Caribbean and in parts of Central and South America.  EEE has been identifed in the Philippines and it may have a presence in Europe.  WEE virus is recognised in reservoir avian hosts in the western United States but clinical disease has been rare here in the last 20 years.  As well as Mexico, Venezuela and colombia, VEE virus has been recently isolated in Trinidad, French Guiana, Peru and Brazil.

=====Epidemic=====

=====Epidemic=====