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Saturday
Today
Extreme
Sunday
Tomorrow
High
Monday
Aug 4
Moderate
Tuesday
Aug 5
High
Wednesday
Aug 6
High
Malaria
Zika
Dengue
Yellow Fever
Chikungunya
West Nile Fever
The most common mosquito-borne diseases in San Mateo are West Nile virus and occasionally St. Louis encephalitis, though cases are relatively rare.
To protect yourself, eliminate standing water, use insect repellent, wear protective clothing during dawn and dusk, and keep window screens intact.