Questions tagged [sars-cov-2]

SARS-CoV-2 is the scientific name given by the International Committee on Taxonomy of Viruses to the virus that causes the disease Covid-19 or coronavirus disease 2019.

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What's the fastest COVID-19 test available?

This video 1 minute COVID-19 test talks about a 1 minute COVID-19 testing which isn't available to the public yet. In the market and online, you can find fast COVID-19 tests which deliver the result ...
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Would a SARS-CoV-2 infection disrupt the blood-brain barrier, leaving the brain more vulnerable to drugs taken simultaneously with the infection?

According to some studies[1], there is some evidence that the virus could cross the BBB. Is that is the case, does that mean that it would weaken the barrier allowing potentially neurotoxic drugs to ...
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Is it true that half of the COVID-19 patients, even seemingly without symptoms, obtain serious heart damage?

In this video, complex systems expert and physicist-turned-epidemiologist Yaneer Bar-Yam claims that according to recent findings, about half of the people that have been infected with COVID-19 will ...
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Number of subsequent infections per case / overdispersion of COVID-19

I am aware that SARS-CoV-2 shows overdispersion, that is that many infected people cause no subsequent infections, but a small number of people cause very many infections (superspreading). The best ...
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Any replications for the finding that SARS-CoV-2 disease severity depends on the initial ineffective dose?

In an October NEJM article it was stated that: Recent virologic, epidemiologic, and ecologic data have led to the hypothesis that facial masking may also reduce the severity of disease among people ...
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How effective are reused surgical masks?

Let's say I have used a surgical mask multiple times. And say I left it on a safe place, untouched, for three days which is the longest that viable SARS-CoV-2 has been found on different materials (...
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Other than death, what are the potential long-term health impacts on individuals infected with COVID-19?

There is a lot of concern about deaths resulting from or exacerbated by SARS-CoV-2 infections, but I can find little about the potential long-term health impacts on those who 'recover' (understandably,...
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Is there a good recent review on the treatment options for COVID19?

I am looking for a summary/review of all the treatment options that have been studied for COVID19? The British medical journal is updating a tremendously helpful ressource (https://doi.org/10.1136/bmj....
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What protection does T-cell immunity confer for Covid?

This preprint, which was just released today, says that while some of the Covid-19 variants evade antibody immunity, they do not evade T-cell immunity. It says that this is true both of T-cell ...
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Are there any randomized clinical trials being conducted on TMPRSS2 inhibitors for Covid-19 treatment?

In a recent paper on why hydroxychloroquine doesn't really work against Covid-19, it's been demonstrated that SARS-CoV-2 is much better at taking advantage of TMPRSS2 at the cell membrane surface, so ...
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Who's RNA does the rRT-PCR test for SARS-CoV-2 target?

The official guide for laboratory testing for coronavirus disease in suspected human cases by the WHO explains the procedure for testing a sample. On page two it states that the test is based on ...
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Is there any information on the lifespan of SARS-CoV-2 antibodies?

Like all cells, antibodies die off after a period of time. A human body may (or not) be able to efficiently replace or replicate these antibodies. Whether the original antibodies were generated ...
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COVID-19 Contact tracing- Is there any clarity on the duration of “contact”

I was somewhat surprised to hear that contract tracers are instructed to disregard contacts between an known infected person (positive tested) person and their contacts if the duration of a contact is ...
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If you've already been infected with SARS-CoV-2, do the vaccines cause fewer side effects?

Assuming that I had Covid-19 not so long ago. My body should have produced some type of antibodies to defend against the infection*. If I now get one of the vaccines, would it be more likely that ...
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Could SARS-COV-2 antibodies disappear 16 months after infection

What is the possibility, based on current medical knowledge, that SARS-COV-2 antibodies are no longer present after 16 months? How would this compare to what we know about the immune response to other ...
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How is the decision for recommending a vaccine reached

There is an ongoing discussion about the use of the AstraZeneca covid-19 vaccine (Vaxzevria) in Europe. Some countries like Germany restrict the use of this vaccine, some - like Austria - do not. How ...
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Cross-replication association

In a genomic study of patients infected with SARS-CoV-2, scientifics detected cross-replicating associations with rs11385942 at locus 3p21.31 , the association signal spanned the genes SLC6A20, LZTFL1,...
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How does ELISA test for COVID antibodies detect antibodies specific to SARS-CoV-2?

I know how ELISA can be used to detect particular antigens by using antibodies specific to the antigen. How is it being used to detect SARS-CoV-2 specific antibodies? I realise that one possible ...