One in four children with COVID-19 symptoms develop “long COVID,” according to data pooled from 21 earlier studies conducted in Europe, Asia, Australia and South America. Also, according to a study reported on March 14 in JAMA Pediatrics, women who wish to pass protective antibodies induced by COVID-19 vaccines to their babies via breast milk should opt for the mRNA shots from Moderna or Pfizer/BioNTech.

Two cases of a subvariant of the Omicron variant were identified in Washington state. Two cases were also identified in Houston.

A roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for Covid-19 shows that New York City first responders have high Covid-19 rates.