In autoimmune diseases, circulating antibodies destroy an individual’s own tissues.
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Are antibodies that attack a patient's own organs contributing to severe forms of COVID-19? A new study suggests specific antibody tests that may reveal the answer.
Vaccines work by teaching your immune system about new viruses. Your immune cells are very clever – they will remember what they learnt, and protect you if you encounter that virus in the future.
A lab technician holds a vial of a COVID-19 vaccine candidate during testing at the Chula Vaccine Research Center, run by Chulalongkorn University in Bangkok, Thailand on May 25, 2020.
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Will a vaccine for COVID-19 be safe? Animal testing, human clinical trials and post-approval surveillance give us good grounds to believe that a future approved vaccine will work and be safe.
Nanotechnology has an impressive record against viruses.
This is just one person. Is he the exception? Is he the rule? We don't know yet for sure. But reinfection is definitely possible.
Is it possible to get COVID-19 twice?
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Reports describe a Hong Kong man who was reinfected with the coronavirus after returning from Europe. Does that mean he wasn't immune after the first infection?
A nurse holds plasma donated by a man who recovered from COVID-19.
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In the blood of COVID-19 survivors are antibodies that can defeat SARS-CoV-2. Researchers are testing whether these antibodies can be collected and injected into others to save them from the virus.
Experts are confident that there will be a vaccine next year.
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As grim as things are with the pandemic raging in the US and the mounting death toll, there are many reasons to be optimistic there will be a vaccine by early next year.
Some people's blood can mount an immune response against SARS-CoV-2, even if those blood samples were taken from before the COVID-19 pandemic started.
It is unclear how well masks work.
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Researchers can't agree on topics such face mask, immunity and number of infections. Here's why.
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If immunity is short-lived, we will be in an ongoing cycle of endless reinfection.
Is coronavirus over in some cities?
There is speculation about whether a population can achieve some sort of immunity to the virus with as little as 20% infected.
This antibody could be used to develop future treatments.
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The antibody can be used to diagnose Alzheimer's disease.
Tobacco has imposed a terrible toll on global health, but it could be used to produce the molecules we need to fight COVID-19.
Antibodies (pink) attacking a virus particle (blue).
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Antibodies that recognize and block SARS-CoV-2 infection have the potential to be powerful weapons. An infectious disease expert explains what antibodies are and how they could be used as a therapy.
The world takes tentative steps to get back up and running amid the COVID-19 pandemic, but our post-pandemic world will look different than how we lived and worked before.
Our experts look at recovery efforts, how different the post-pandemic world will be, the hunt for a cure for COVID-19, and why we need to mind our mental health.
Antibodies are incredibly good at finding the coronavirus. Antigen tests put them to work.
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An antigen test was given emergency use authorization by the FDA in early May. A biochemist explains how COVID-19 antigen tests work.
View of blood collection tubes in a rack on the first day of a free COVID-19 antibody testing event at the Volusia County Fairgrounds, in DeLand, Florida.
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Amazon and General Motors are among companies exploring ways to test employees for COVID-19 infection, but these measures may be against the law.
It’s not yet clear whether antibodies in the blood of patients who have been infected with SARS-CoV-2 indicate immunity. Above: blood specimens for COVID-19 antibody tests.
(AP Photo/Mary Altaffer)
Immunity to COVID-19 may be complicated. Here are the promises and pitfalls of antibody tests.
'Nanobodies' produced by the llama immune system can neutralise the virus that causes COVID-19.