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A common nasal spray may help prevent Covid. What a new study shows

A common nasal spray may lower the risk of getting Covid-19, a new study shows. Dr. Leana Wen discusses what this all means as coronavirus cases rise.

Could a common nasal spray help block Covid-19? What a new study shows

A common nasal spray may lower the risk of getting Covid-19, a new study shows. Dr. Leana Wen discusses what this all means as coronavirus cases rise.

New COVID variant is spreading across CA. What are symptoms? Do tests still work?

Here’s what to know about the latest COVID strain — and how to tell if your at-home test is still good to use.