<unk>  virus causes an illness in humans called<unk>  (also known as<unk>  fever).<unk>  viruses are usually transmitted to humans via a mosquito bite, from the Aedes mosquito. However,<unk>  virus may also be transmitted from humans to other humans by exchanging body fluids, which often occurs during sexual intercourse or after blood transfusion.<unk>  virus is very contagious.
It was once thought that<unk>  is rare. New observations have shown that the initial estimates of the frequency of the disease has been underestimated in the past.<unk>  virus is thought to be responsible for serious complications in newborns characterized by incomplete brain development (microcephaly).
Zika virus infection
Bourbon virus infection
Tick borne encephalitis
Nipah virus encephalitis
Tick-borne encephalitis
St. Louis encephalitis
Pel-Ebstein fever
Poliomyelitis