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After Paxlovid came to the market and people started using it, some patients would get better and then after feeling better, they would feel recurrent symptoms and would test positive after ...
Some people who take the 5-day COVID-19 antiviral treatment are testing negative—then testing positive again days later Here’s What Scientists Know About Paxlovid Rebound Skip to main content
When the antiviral medication Paxlovid was approved in 2021 to treat COVID-19, doctors began noticing a trend among some patients: a rebound case of the virus. After treatment, some people would ...
After more than two years of evading COVID-19, I tested positive at home on a rapid antigen test during the summer of 2022. At first, the line was so faint that it didn't even show up in photos.
The research that led to nirmatrelvir began in March 2020, when Pfizer formally launched a project at its Cambridge, Massachusetts site to develop antiviral drugs for treating COVID-19. [15] In July 2020, Pfizer chemists were able to synthesize nirmatrelvir for the first time. [ 15 ]
In unvaccinated high-risk people with COVID‑19, nirmatrelvir/ritonavir can reduce the risk of hospitalization or death by 88% if taken within five days of symptom onset. [20] People who take nirmatrelvir/ritonavir also test negative for COVID‑19 about two and a half days earlier than people who do not. [21]
After President Biden tested positive for COVID-19 last month, he experienced a Paxlovid rebound. Here's what that means and why people with rebound symptoms should take precautions.
Doctors generally agree that this means you have COVID-19. “A faint line on a COVID test means the test is positive,” says infectious disease expert Amesh A. Adalja, M.D., a senior scholar at ...
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