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.