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Expert still recommends masking up on trains as BART mandate expiresJuly 18, 2022 -
Risk-benefit-analysis needed to determine when masking is still effective for individualsMay 2, 2022 -
Report: Most of the boxes of PPE left out in the rain by San Mateo County were still usableApril 1, 2022 -
Omicron performs differently with at-home tests, pretty big 'curveball' says expertJanuary 7, 2022 -
Expert: Universal masking could save 62K lives by February 1November 10, 2020 -
Answering Your Questions About Wearing MasksJuly 2, 2020 -
Answering Your Questions About Face MasksJune 22, 2020 -
Answering Your Questions About PPEMay 14, 2020 -
Answering Your Questions About Caring For And Making MasksMay 1, 2020 -
San Francisco Issues Order Requiring Face Coverings In PublicApril 17, 2020