|Hantavirus micrograph. About 150 nm diameter.|
Hantavirus is a family of viruses that lives in rodents throughout the world. Anywhere from five to twenty percent of the host species have antibodies for hantavirus, meaning that they either have it, or have had it. Hantavirus doesn’t seem to do rodents much harm. When hantavirus makes the jump from rodent to human, however, it often causes severe illness or death.
|Total numbers of HPS cases since 1993 by state. (CDC)|
|Deer mouse, the most common SNV host.|
|White-footed mouse, from the northeast U.S.|