How long are you contagious with COVID-19? You are contagious and may spread the virus that causes COVID-19, at least 2 days before you show symptoms and for up to 10 days from the day you have your first symptom. The highest risk of transmitting the virus to someone else in the fe...
Since the beginning of the COVID pandemic, several variants have dominated at various times, including the Alpha, Beta, Delta, and Omicron strains. The CDC says COVID is very contagious and spreads quickly to others. Although 98% of people in the U.S. have some immune protection to the v...
There’s a new variant of COVID and omicron called HV.1 that is spreading rapidly around the United States. The variant is a powerful and contagious mutation of the deadly virus that has only been around for a few months but has quickly become theleading strain of COVIDin the US. Scient...
and that it will continue to circulate and mutate as long as it can spread. The emergence of the omicron variant is yet another reminder of the urgency to vaccinate to stop the
How Long Am I Contagious? Medically reviewed by Zilpah Sheikh on October 11, 2023 Written by Paul Frysh You don’t want to pass on germs when you’re feeling sick. But it could happen if you don’t know how long you’re contagious. Find out how long you can pass certain illnesses ...
Are you still contagious if you’re testing positive? This is where things get a little tricky, since you might get different results depending on which type of test you use. Specifically, Dr. Russo cites data that show PCR tests can stay positive for up to 90 days after you originally ...
t contagious. If someone has COVID-19, but hasn’t yet reached the test’s threshold of viral particles, they may still test negative with an antigen test but positive on a PCR test. That’s why I tell people they should trust a positive antigen test, but be more skeptical about a ...
wear awell-fitting, high-quality mask– an N95, KN95 or KF94 mask. I get very worried when I see people in simple cloth masks. They may think that those masks are protecting them, but they aren’t doing much, especially when we are dealing with theextremely contagiou...
While a slight majority of Americans have received a full vaccination against COVID-19 sometime over the past few years — the figure stands at around 60%, according to public data— new variations of SARS-CoV-2 are proving to be more contagious than ever before. The new Omicron subvariant...
As long as very contagious variants of COVID such as Omicron keep evolving, masks remain an important way to stay safer in certain situations. Depending on the spread of COVID, officials will continue to update mask guidance as needed. So make sure you're up to date on which masks offer...