搜尋結果
2022年8月31日 · The Food and Drug Administration on Wednesday authorized updated versions of Pfizer-BioNTech’s and Moderna’s Covid booster shots that target the highly contagious BA.5 omicron subvariant. The ...
2022年12月31日 · The subvariant of omicron, named XBB.1.5, has raised concerns about another potential wave of Covid cases following the busy holiday travel season. The CDC projected Friday that about 40% of ...
2021年12月15日 · LONDON — Omicron is “the most significant threat” to public health in the U.K., authorities warned Wednesday, as the World Health Organization cautioned that the highly contagious Covid-19 ...
2022年1月18日 · In December, the federal government announced it would start mailing at-home Covid test kits for free to any U.S. household that requests one, as the omicron variant of the coronavirus contributes ...
2022年3月16日 · March 16, 2022, 3:00 PM PDT. By Denise Chow. A hybrid variant of the coronavirus that has characteristics of both the delta and omicron strains has been detected in the United States and several ...
2021年12月7日 · Although omicron is expected to spread quickly and edge out other variants over time, it remains a sliver of the U.S. caseload now, which is still more than 99 percent delta, Walensky said.
2021年11月30日 · The Omicron Covid-19 variant is a byproduct of global vaccine inequality, some experts say. Scientists have warned wealthy nations to share vaccines with poorer countries or risk the emergence of ...
