(CNN) — Here’s a look at Zika virus, an illness spread through mosquito bites that can cause birth defects and other neurological defects. Zika virus is a flavivirus, part of the same family as yellow ...

Powassan virus, an extremely rare tick-borne illness, is trending after a severe case in a 3-year-old boy in Pennsylvania led to hospitalization. While swimming in a neighbor's pool, Jonny Simoson's ...

Melbourne: An outbreak of the deadly Nipah virus in India has put many countries in Asia on high alert, given the fatality rate in humans can be between 40% and 75%. Several countries, including ...