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Pandemic Mask Rules Are Making Even Less Sense

Pandemic Mask Rules Are Making Even Less Sense

Saturday, 25 September, 2021 - 04:45

San Francisco Mayor London Breed sent an important but unintentional message last week when she was caught violating her own mask mandates while partying away, maskless, in a jam-packed jazz club.


Her excuse was incoherent; she said she was “feeling the spirit,” enjoying the music and so not thinking about a mask.


But the more serious problem wasn’t her hypocrisy and lame rationalizing so much as the mixed and misleading messages sent by the rules themselves. Americans are in dire need of guidance that’s coherent, fair, sustainable and backed by evidence. And they’re not getting it from public health authorities or the rule-makers who rely on them, even as the country slouches toward a confusing new normal with no end to Covid-19 in sight.


“We don’t need the fun police to come in and micromanage and tell us what we should or shouldn’t be doing,” Breed said when questioned. She was making a good point! But as Charles C.W. Cook wrote on Monday in National Review, she is the person who authorized the mask mandate. She is the fun police.


What we do know from scientific observations is that some environments are more risky than others. Epidemiologists had at one point used the term the Three Cs to describe the major risk factors: crowds, close contact and closed spaces. The San Francisco club where Breed was caught might as well have been flashing all three Cs in neon signs.


Her explanation after the fact made the point that it’s kind of absurd to expect people to enjoy live music in clubs while wearing “well-fitting” masks, as required by local rules. Even the most enthusiastic maskers probably wear a mask about 20% of their time in a club, or cocktail party or similar event. Does that really help?


Not really. There is scientific evidence to suggest that this small amount of mask wearing is mostly symbolic in such situations.


Early in the pandemic, infectious disease doctor Muge Cevik had collected studies in which researchers employed contact tracing to figure out how and where the virus was actually jumping from person to person. What the studies kept showing was that the virus was transmitted indoors, and the longer people spent indoors together, the more likely transmission would occur.


Duration is extremely important — it’s not all about that six-foot distance. The virus travels on small airborne particles, which would be diluted quickly outside but build up in indoor air. That would mean spending three hours mostly unmasked in a club is much worse than spending 10 minutes totally unmasked to grab a soda in a convenience store. Other studies showed that risk skyrocketed when there was singing and the kinds of loud conversations people have in clubs and bars.


The San Francisco club did require patrons to be vaccinated, but new data on the delta variant suggests that it’s still possible for fully vaccinated people to get a mild or asymptomatic case, and possibly to transmit the virus to others. That could lead to more hospitalizations among children, who can’t yet be vaccinated, or the immunocompromized, who aren’t getting full protection from their vaccines.


At the same time, Covid prevention has to be balanced with human needs. Nobody wants to live in a world where live music is outlawed. Imposing some mask mandates might seem like a reasonable compromise.


But let’s not stumble into a future in which mask rules seem arbitrary, stupid or unfair. In San Francisco, runners in the marathon have to wear a mask, though that kind of venue is much less risky than the club where Breed was caught partying. Maybe she just likes music more than marathon running.


The first step toward reshaping policy would be to agree on a goal. A pair of researchers from Harvard and Boston Universities recently wrote in the New York Times about the need to agree on a purpose for Covid-19 rules and restrictions.


“Sleepwalking into indefinite masking is not in anyone’s interests and can increase distrust after an already very difficult year,” they wrote.


As risk-communication expert Peter Sandman wisely said early in the pandemic, science can tell us which activities are riskiest but it can’t tell us how much risk to accept. That is, by its nature, a political decision.


Science can help shape coherent policies that would achieve a goal once people decide what they want. If the situation is indeed serious enough that goals can’t be achieved without masking marathon runners, then music lovers would have to adapt and enjoy live performances outside, or in venues where there’s no drinking so people remain masked. Fair is fair.


It may turn out that an additional vaccine shot will be enough to stem the tide of delta cases, but scientists are still split on who should get them and whether the purpose is to keep people from being hospitalized, or to cut down on all cases. And the tangle of booster recommendations coming from Washington is hopelessly confusing.


Bloomberg


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