Following tests on mosquitoes for West Nile Virus, the Metropolitan Mosquito Control District reported that virus activity is increasing, earlier than usual.
The Metropolitan Mosquito Control District (MMCD) said Culex tarsalis, the mosquito species most responsible for transmitting WNV to humans, was active in some of the highest numbers ever recorded by the organization.
The MMCD lab tested 133 mosquito pools and found 34 were positive for WNV, over 25% of the tested pools…