Carbon monoxide poisoning: Here’s what you need to know

By DR. MISHAL REJA, ABC News (NEW YORK) -- A deadly winter storm has left millions of Americans across the country without power and heat in freezing temperatures. Hospitalizations and deaths from carbon monoxide poisoning, also known as "the silent killer," have spiked.

What CDC found about wearing 2 masks

By ANNE FLAHERTY, ABC News (NEW YORK) -- Fit matters when it comes to your mask protecting you against the virus that causes COVID-19, and layering a well-fitting cloth mask over a surgical mask is likely to prove beneficial, according to new findings... Read More.

What to know after you’ve been vaccinated for COVID-19

By ERIN SCHUMAKER, ABC News (NEW YORK) -- With priority groups like front-line workers and doctors receiving their second doses of the COVID-19 vaccine, and the prospect of vaccination for the general population on the horizon, many Americans may be wondering: What happens... Read More.