The clinical secondary attack rate for asymptomatic COVID-positive children was more than 10%.
Study suggests medical masks may offer similar protecion as N95 respirators, but experts say hold on.
Public health professionals use some terms imprecisely, others incorrectly, and still others technically accurate but almost sure to be misunderstood by the public.
Get weekly COVD-19 updates in your inbox.
Catch the latest episode!
Top COVID FAQs
By CIDRAP & other experts
Up-to-date COVID-19 data
Older people, Asians, and those with Medicaid coverage and preference for a non-English language at one US hospital system had fewer completed telemedicine visits than their peers during the COVID-19 pandemic, according to a study of patients scheduled for primary care or specialty telehealth visits at the University of Pennsylvania.
As cases soar in both the UK and South Africa, scientists are scrambling to detail variant virus characteristics.
The next few months could be difficult, if Christmas and New Years gatherings and travel seed a new surge in infections.
A study of hospital air contamination in JAMA Network Open last week found that 17.4% of air samples from environments near COVID-19 patients were positive for SARS-CoV-2 RNA, the virus that causes COVID-19, but only 8.6% contained viable virus.
Only two reinfections occurred in antibody-positive workers, both asymptomatic, and researchers said earlier infection appears to protect for at least 6 months.
One reason for concern: The variant has developed 23 mutations in just months.
More than 40% of US hospitals with ICUs are at 85% or higher capacity, as Pfizer agrees to supply 100,000 more vaccine doses.
France eases its ban on travel from England, a move prompted by the discovery of a rapidly spreading variant virus.
No COVID vertical transmission was found, but maternal antibody transfer was less than expected.
The findings provide hope that vaccines may generate long-term protection.