Reina Monterrosa holds the head of her 6-year-old son, Anderson, as nurse practitioner Rita Ray collects a nasal swab sample for a COVID-19 test at Families Together of Orange County community health center in Tustin, Calif., Thursday, Jan....
Health officials say close contact during holiday gatherings, especially among unvaccinated people, has helped spread the highly infectious mutation. But vaccinations and booster shots were protecting many people from severe illness, health officials said
综合
福克斯新闻-美国
2022-01-08 00:00:00.0