Mexican free-tailed bats and their young.<unk>  refers to infection from unrecognized exposure to<unk>  virus. It is often phylogenetically traced to bats. It is most often seen in the southern United States. Silver-haired bats (Lasionycteris noctivagans) and tricolored bats (Perimyotis subflavus) are the two most common bat species associated with this form of infection, though both species are known to have less contact with humans than other bat species such as the big brown bat. That species is common throughout the United States and often roosts in buildings and homes where human contact is more likely.
Cryptic rabies
Brain fever
Tick-borne encephalitis
Eastern equine encephalitis
Tomato fever
Japanese encephalitis
Postvaccinal encephalitis
Saint Louis encephalitis