@RedLittleladyin @tammyischatty @DrLeanaWen They do, but not to an extent that accumulated risk won't eventually get you. If you're 90% protected (very good, but likely optimistic, assumes property continuous use) then it means instead of getting infected in a month it might take 10 months.
@RedLittleladyin@tammyischatty@DrLeanaWen他们是这样做的，但并没有达到累积风险最终无法让你受益的程度。如果你得到了90%的保护（非常好，但可能很乐观，假设财产持续使用），那么这意味着你可能需要10个月的时间，而不是在一个月内被感染。