A new word has been added to the public’s vocabulary – the Zika virus. It seems we have one more infectious agent to worry about. Here are the facts as we currently understand them regarding the recent Zika epidemic, and also some rumors and conspiracy theories that need debunking.
The Zika virus (of the viral family Flaviviridae, an Arthropod-Borne or arbovirus) is spread through Aedes mosquito bites, the same mosquitoes that also spread dengue fever, West Nile, and yellow fever. The infections themselves are usually mild, causing fever, rash, joint pain, and conjunctivitis. Many of those infected (about 80%) may even have a subclinical infection, meaning they do not notice any symptoms.
According to the World Health Organization:
Zika virus is diagnosed through PCR (polymerase chain reaction) and virus isolation from blood samples. Diagnosis by serology can be difficult as the virus can cross-react with other flaviviruses such as dengue, West Nile and yellow fever.