Researchers have determined that the hepatitis C virus is not transmitted by
mosquitos. There is a lack of epidemiological or physical evidence that
it is mosquito-borne and experiments to see any HCV replication in
mosquito cells have failed.
There are two ways that mosquitos can transmit illness to humans.
These are “mechanical transmission” in which a small amount of blood may be
present on the mosquito’s feeding spike.
This type of transmission does not occur with serious human diseases such as HCV, HBV, or HIV. The second way mosquitoes transmit disease is called “biological” transmission. Studies show that mosquitoes can swallow viruses into their middle gut, but once there the virus dies and is digested in the same way we digest food - by breaking it down using acid.