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Jul 3, 2024 · Not everyone who is exposed to SARS-CoV-2, the virus that causes COVID, gets the disease. New research published in June in Nature may partly explain why: In a 2021 experiment called a challenge ...
Jun 21, 2024 · Health 21 June 2024. By Mike McRae. (Luis Alvarez/Getty Images) A detailed comparison of COVID-19 cases has finally provided insight into why some individuals have yet to endure so much as a sniffle from a virus that brought much of the world to its knees. Based on an analysis of the genetic activity in the nasal tissues and blood of people ...
- Do Genetics Make Some People Immune to Covid-19?
- Do Prior Viral Infections Provide Covid-19 Immunity?
- Other Reasons People Haven’T Tested Positive
An international team of researchers is in the process of recruiting potential study participants who fit the so-called “never COVID” cohort. They are looking for people who were exposed to someone with COVID-19 for a lengthy period, without protection, and never got sick or tested positive for the virus. For example, in some cases an entire family...
Another study, published in Nature Communications, shows that some individuals have what might be a pre-existing immunity to COVID-19. “The hypothesis is that people with increased exposure to other versions of coronaviruses will have ‘premade’ T cells that cross-react with COVID-19 and are able to quickly respond to COVID-19 infection,” Sensenig e...
In addition to potential immune system or genetic factors, other people may have never developed COVID-19 if they evade exposure. For example, some people have had the ability to work from home or practice rigorous social distancing. Masking and following vaccination and booster recommendations from public health experts prevented many infections, ...
- Jennifer Chesak
Jun 28, 2024 · Published: June 28, 2024 11:46am EDT. Throughout the pandemic, one of the key questions on everyone’s mind was why some people avoided getting COVID, while others caught the virus multiple times ...
Apr 4, 2022 · Dr Bryant is part of an Australian research team investigating how COVID-19 spreads in households, and why some people — like herself — don't test positive at all. "We can gain a lot of ...
- Olivia Willis
Jul 3, 2024 · An obscure gene may be why. A rapid nasal immune response associated with this gene’s activity may help ward off SARS-CoV-2. People who have never had COVID-19 are the exception to the rule. Now ...
Jun 19, 2024 · Individuals who immediately cleared the virus 2 did not show a typical widespread immune response, but instead mounted subtle, never-seen-before innate immune responses. The results suggest that high levels of a gene called HLA-DQA2 before exposure helped people prevent a sustained infection from taking hold. People with high levels of this ...
