Should be smaller R0. However, I meant not to fix it. It took 22 months that CDC start considering to recommend N95 and some areas (Salt Lake city) starts giving free N95.
People who did not understand the richness,fastness, unpredictable, of COVID’s mution could not appreciate my conclusoin two years ago.
Should be smaller R0. However, I meant not to fix it. It took 22 months that CDC start considering to recommend N95 and some areas (Salt Lake city) starts giving free N95.
People who did not understand the richness,fastness, unpredictable, of COVID’s mution could not appreciate my conclusoin two years ago.