West
Nile virus has been observed earlier and faster this past summer in Sacramento,
especially compared to last year’s report at the same time period. According to
the Sacramento-Yolo Mosquito & Vector Control District, 47 infected dead
birds and 30 mosquito samples have been reported.
This
increase is attributed to recent rains and warmer days that encourage faster
mosquito breeding cycles. The combination of spring rain and subsequent
100-degree weather has created ideal conditions for breeding mosquitoes.
According
to Luz Maria Rodriguez, spokeswoman for the Sacramento-Yolo mosquito district,
“Heat increases the life cycle of mosquitoes, so we weren’t surprised, after we
had over-100 degree days, when we saw an increase in activity.” Sacramento
County currently reports the second highest number of West Nile-infected dead
birds in California.
Dead
birds are the predominant indicator of West Nile virus, which is commonly found
in crows, blue jays, and magpies. Most people infected with the virus
demonstrate no symptoms, but 20% of those infected will subsequently suffer
from fever coupled with other symptoms, including headaches and body pain.
There is currently no vaccine, and prevention methods include mosquito
repellant and long-sleeved clothing when outdoors.
- Linda Shin
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