Mutation in highly infectious Alpha variant may help coronavirus evade immune system

The B.1.1.7 coronavirus variant—also known as Alpha—may be more infectious because it contains mutations that make it better adapted to foil the innate immune system, at least for long enough to allow the virus to replicate and potentially find new hosts, according to a new study on BioRxiv. In the study, which has not been peer-reviewed, researchers at UCSF, in […]

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COVID-19 Caution: Even With Vaccines, It May Be Too Early to Have Small Gatherings Again

Experts say even with COVID-19 vaccines being distributed, it’s still too early to start having small gatherings again. They note it remains important to wear masks and continue to practice physical distancing, even after getting vaccinated. It’s still unknown how effective the COVID-19 vaccines are against the new variants of the virus, experts say. Like millions of other people in […]

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More infectious COVID-19 variant now seen in nine states

(HealthDay)—The more contagious coronavirus variant that has brought Britain to its knees in recent weeks is showing signs that it is spreading widely throughout the United States, health officials and experts say. Indiana, Texas, Pennsylvania, and Connecticut joined California, Florida, New York, Georgia, and Colorado on Monday with reports of variant cases, The Washington Post reported. A South African variant […]

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Contact tracing slows the spread of infectious diseases

Contact tracing is a tool that can help slow the spread of infectious diseases, such as coronavirus disease 2019 (COVID-19). In communities using contact tracing, clinics, labs and hospitals send the names of people who have recently been diagnosed with COVID-19 to their local health department. The health department asks each person with COVID-19 about people with whom they’ve recently […]

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Why the Next Few Days Will Be Critical for Trump’s COVID-19 Recovery

Some COVID-19 patients can improve early on, but then experience worsening symptoms. Studies of people with COVID-19 show that this sudden deterioration tends to happen around 1 week after the start of symptoms. The improvement and worsening of symptoms is related to two distinct phases of the illness — infection with the virus that causes COVID-19 and the inflammation that […]

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What to Know About Vitamin D and COVID-19

Several studies have linked vitamin D deficiency to coronavirus infection and more severe COVID-19. Experts are now investigating if taking vitamin D may help protect against severe COVID-19 symptoms. Even before these studies are finished, there are good reasons to consider taking a vitamin D supplement. With no coronavirus vaccines approved for full use, many people are turning to vitamins […]

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Here’s Why Seasonal Flu Vaccines Only Last a Few Months

With the COVID-19 pandemic already straining healthcare centers, this year it’s more important than ever to get your annual flu shot. The flu virus changes yearly as multiple strains spread throughout the community and the virus adapts itself for survival. It takes between 3 and 4 weeks for someone to develop immunity against the predicted strains of influenza after getting […]

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You Probably Can’t Get COVID-19 Twice: The Latest on Antibodies

Experts say a person may still have immunity protection against COVID-19 even if antibodies aren’t present. They say antibodies can be reproduced quickly during exposure, and T cells and other body defenses can also be effective. They say the antibody response to COVID-19 does affect how often vaccines may need to be administered. A recent spate of reports and studies […]

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