A county health officer says that the chances are good that the H1N1 virus has a presence at most San Diego schools.
Swine flu outbreaks are confirmed at 40 schools around the county, according to San Diego County Health and Human Services Agency spokesman Tom Christensen.
A partial list (which will be updated after 1 p.m.) of the affected schools with active outbreaks are:
Outbreaks have been reported at the following schools, but they are no longer believed to be active (this, too, is a partial list):
Flora Vista Elementary (Encinitas Union)
Hawthorne Elementary (San Diego Unified)
Ibarra Elementary (San Diego Unified)
Mission Estancia Elementary (Encinitas Union)
Oak Valley Middle (Poway Unified)
Ross Elementary (San Diego Unified)
Solana Santa Fe (Solana Beach)
Christensen said some classes have had absentee rates of 20 percent or more.
"We know this virus is widespread throughout the community, and that includes our schools," Deputy Public Health Officer Dr. Dean Sidelinger said.
More than 1,000 confirmed cases of swine flu have been reported in the county in 2009. Twenty-five residents have died from the swine flu, according to health officials.