COVID-19humannasal mucosaepithelial immunitycorrelates of immunityinterferonanti-viralscRNA-seqSARS-CoV-2 infection can cause severe respiratory COVID-19. However, many individuals present with isolated upper respiratory symptoms, suggesting potential to constrain viral pathology to the nasopharynx. Which ...
COVID transmission period People seem to be most infectious about 2 days before they have symptoms and early on. If you have severe symptoms, the illness can be contagious for longer. People infected with the virus can be contagious and can spread it even if they don't have symptoms. If ...
People who are deficient in vitamin C could be more at risk of SARS-CoV-2, or of developing severe COVID-19 because their immunity is impaired Vitamin C deficiency is associated with increased susceptibility to infections, a less robust immune response, poor wound healing, and an increased ris...
Many people are hoping that enough people develop resistance to COVID-19, either from being exposed to the disease or from vaccination, to develop herd immunity that will enable society to return to normal. But will that happen? Saad Omer, MD, from the Yale Institute for Global Health, disc...
Can I take Tylenol, Advil or Motrin before the COVID vaccine? It is NOT recommended that you take OTC medicines such as ibuprofen (Advil, Motrin), naproxen (Aleve), aspirin, or acetaminophen (Tylenol)beforethe COVID vaccine to help prevent vaccine side effects like muscle aches, headache, ...
Yes. It can get into your lungs if someone who has it breathes out and you breathe that air in. Experts are divided on how often the virus spreads through the airborne route. How long does COVID stay in the air? Research shows that the virus can live in the air for up to 3 hours...
A group of scientists are calling it “The Great Barrington declaration”—a strategy to deal with the Covid-19 pandemic by age-targeted reopening. The advocates call it “focused protection”; they say it would create herd immunity. Gregg Gonsalves argues th...
It is doubtful that vaccines will lead to world herd immunity with respect to COVID-19. We need to focus on our own immune system, making simple changes to buildings and customs, and changing expectations. The issue we are facing is really an energy issu
COVID super-immunity: one of the pandemic’s great puzzles Immunity against Omicron from breakthrough infection could be a matter of timing COVID reinfections surge during Omicron onslaught Is one vaccine dose enough if you’ve had COVID? What the science says Breakthrough COVID powers ...
Chinese authorities have confirmed that Hong Kong and Macao residents living on the mainland are now included in the country's vaccination program, which means people from both special administrative regions are now eligible to get COVID-19 jabs free of charge on a voluntary ...