This year, hospitals are being overwhelmed with a combination of Covid, respiratory syncytial virus (RSV) and the flu. This “tripledemic” of flu, Covid and RSV is a reminder that even as the pandemic ends, the threat of seasonal respiratory viruses remains. When and where respiratory viruses are surging, mask mandates should be reinstated. A recent study found that Boston school districts that had lifted mandates averaged 45 more Covid cases per 1,000 students and staff than those with mandates. This means that RSV — for which a vaccine is still being developed — can be mitigated through both mask-wearing and hand-washing.

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