La Crosse encephalitis (USA – Indiana)

12 October 2017 – A 6 year old boy and a 11 year old girl from Batesville, Indiana are struggling to recover from infections with La Crosse virus. La Crosse virus (LACV) is a member of the California serogroup of arboviruses. A map of the distribution of California virus serogroup neuroinvasive disease cases (mainly LACV cases) shows 3 major focal geographic areas: (1) in the unglaciated areas of southeastern Minnesota/southwestern Wisconsin/northwestern Illinois, (2) Ohio, and (3) the central Appalachian Mountain areas of Virginia/West Virginia and North Carolina/Tennessee (see the CDC map). Primary vectors are Aedes triseriatus, the tree hole mosquito, but invasive Ae. albopictus and, notably, Ae. j. japonicus seem to have enhanced transmission.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s