Questions tagged [antibodies]

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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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Effects of anti-Rh(D) antibodies on the fetus

Rh disease is caused by the irruption in the fetal circulation of anti-Rh(D) antibodies. This only happens when there has been a prior exposure of the mother to Rh+ RBC. To prevent Rh sensitization ...
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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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What are some better alternatives to HIV antibody test?

I've been having HIV symptoms for more than 4-5 months, I reran the antibody test for five times it all became negative, the doctor said that you didn't have to worry about HIV anymore as all the ...
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Does the saliva of a person just recovered from an infectious disease help to cure another persons having the same disease?

I have always had this 'weird' thought (But could never quite test it...). Would the saliva contain antibodies, or other immuno-boosting substances that can help fight off the same pathogen in another ...
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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 ...
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What's the probability of catching COVID-19 more than once?

In this YouTube video Can you catch coronavirus more than once? l GMA Digital the doctor says that "we don't really know yet". Assuming that the answer could be yes, what's the probability ...