Dr. Jinhai Wang    MD20850, USA

COVID VARIANTS IN USA:

1.  Alpha was ended  — masks, mRNA vaccines, social distance, staying home    2021 Spring

2. Delta was ended   – masks, mRNA vaccines, social distance, staying home, Omicron crossover “protection”?    2021 Fall/Winter

3. Omicron was ending?  — self-limitation as low toxicity “live vaccine活疫苗”?, Pfizer Omicron vaccine(March?) ?, mask, mRNA vaccines, Summer heat?, social distance, staying home (work at home, retired, et al)  2022 Around Summer?