After all, she manages a lab in Tucson that processes Covid tests.

“I was searching for the Omicron rapid test efficacy and trying to figure out what brand works on this variant and what doesn’t and how long they take to produce results,” she said.

(The Food and Drug Administration has said that rapid antigen tests may be less sensitive to the Omicron variant but has not identified any specific tests that outright fail to detect it.) “I started seeing people on Twitter say they were having symptoms and only testing positive days later.

She kept testing, and a few days after Christmas she received the result she had expected all along.

tests, the gold standard, don’t always detect every case, especially early in the course of infection, and there is some doubt among scientists about whether rapid antigen tests perform as well with Omicron.

And, the need for a 10-day isolation period was thrown into question after the Centers for Disease Control and Prevention announced that some people could leave their homes after only five days.

“The information is more confusing because the threat itself is more confusing,” said David Abramson, who directs the Center for Public Health Disaster Science at the N.Y.U.

Many people are now coming to their own conclusions about Covid and how they should behave.

Abramson said.

“I couldn’t tell if it was five days or 10 days.”.

Abramson said the five-day guidance “has too much ambiguity.” “I would have preferred much clearer guidance,” he said.

“I asked people who I communicate with on Twitter who did lockdowns what they did and what they thought I should do,” she said.

“I asked my mom and dad what they thought.

I asked friends of mine who had Covid before.”.

Keep yourself and others safe by following some basic guidance on when to test, which mask to pick and how to use at-home virus tests.

When most of his family contracted Covid over Christmas, it only made him more confident in his decision

“I had a huge Covid outbreak in my family over Christmas