The County is investigating a large, suspected outbreak of respiratory and flu-like symptoms at Patrick Henry High School, the largest high school in San Diego.
The health department says they don't know the exact illness causing the outbreak, and are testing for the flu, a virus called respiratory syncytial virus or RSV, as well as Covid-19.
Rady Children's Hospital says it has seen a spike in emergency room visits for the flu and RSV.
The county is looking to see if other schools are reporting higher respiratory illness numbers, in addition to Patrick Henry.
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