"WARNING UNMASK YOUR KIDS! Any Carbon Dioxide concentrations above 2000ppm is dangerous!" The post was flagged as part of Facebook’s efforts to combat false news and misinformation on its News Feed.

SAN FRANCISCO (KGO) -- The Journal of the American Medical Association published a research letter suggesting high levels of carbon dioxide detected in children wearing masks. "There may be some ...

A new school year is underway in many parts of the United States and in several school districts, children are meeting in person for the first time since the coronavirus pandemic was declared by the ...

Keeping schools open is of paramount importance, but we are approaching it the wrong way, targeting the wrong groups, prioritizing the wrong tools. Too much attention is being paid to masks in the ...

The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.

SAN FRANCISCO (KGO) -- The omicron surge has caused the CDC to finally update its mask guidance late last week, indicating a clear preference for the level of protection offered by N95 and KN95 masks.

Experts say that the level of carbon dioxide in indoor air is an easy proxy for potential COVID-19 exposure. Outdoor air typically has less than 400 ppm of carbon dioxide. My measurements showed CO2 ...

Federal agencies can relax their mask and testing protocols in the wake of new public health guidance. The Centers for Disease Control and Prevention’s released on Friday a “new framework” that “moves ...