Physical distance may not be enough to prevent viral aerosol exposure indoors. Eighteen months ago, stickers began to dot the floors of most shops, spaced about six feet apart, indicating the physical distance required to avoid the COVID-19 virus an infected person may shed when breathing or speaking. But is the distance enough to help avoid infectious aerosols? Source 7l.
Low dose of Pfizer-BioNTech coronavirus vaccine is safe and effective for kids ages 5-11, company study shows. Pfizer-BioNTech's COVID-19 vaccine is safe and effective for children ages 5 to 11 at one-third the dose used in adolescents and adults, according to a new study from the companies. The Food and Drug Administration and Centers for Disease Control and Prevention will need to sign off on the vaccine before it becomes available to children, but officials have promised to quickly review the data. Source 2q.
Devastating human toll from COVID-19 reaches another grim milestone as the worldwide death tally surpasses 5 million. Nowhere else in the globe has the cost in lives been higher than in the United States, despite the country’s abundance of vaccines. The U.S. Death count has surpassed the estimated 675,000 Americans who died in the 1918 flu pandemic, and the emergence of vaccines toward the end of 2020 only slowed the pandemic’s pace. Source 9i.
In COVID-19 vaccinated people, those with prior infection likely to have more antibodies, research finds.Researchers have shown that antibody levels against SARS-CoV-2 (The COVID-19 virus) stay more durable -- that is, remain higher over an extended period of time -- in people who were infected by the virus and then received protection from two doses of messenger RNA (MRNA) vaccine compared with those who only got immunized. Source 3d.