Health care workers wait in line for vaccinations at a site in Los Angeles.
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With vaccine shortages looming, experts are debating whether it is important to receive two doses or whether it's better to give one dose to more people and give a second when the supply is better.
I am a physician, and I just got my first shot of the Pfizer COVID-19 vaccine.
With vaccines forthcoming for most Americans, many groups, including expectant mothers, are wondering if the vaccine is safe for them and their babies. A physician-scientist explains.
The number one scientific breakthrough for 2020: multiple vaccines to prevent COVID-19.
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The development of multiple vaccines against the virus that causes COVID-19 has been hailed as the breakthrough of 2020. But there were many more supporting discoveries that made this possible.
A little bit of post-injection soreness is completely normal.
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The side effects of new SARS-CoV-2 vaccines are a result of immune system activation. While uncomfortable, they are both normal and expected. They are a sign that the vaccine is working.
Several new studies show our immune responses to the virus can last at least eight or nine months, and probably longer.
Now there is a third possible vaccine for fighting the COVID-19 pandemic.
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There is now a third vaccine that prevents COVID-19 infections. It isn't quite as effective as the other two vaccines but it has advantages that may make it the frontrunner.
Working out strengthens more than just your muscles – it strengthens your immune system, too.
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Older adults, who are at a higher risk for COVID-19 complications, can strengthen their immune systems by exercising.
A volunteer gets an injection of Moderna’s possible COVID-19 vaccine on July 27, 2020. Moderna announced Nov. 16 that its vaccine is proving highly effective in a major trial.
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Two pharma companies have announced early COVID-19 vaccine trial results with over 90 per cent effectiveness. What does that mean for getting back to normal?
Anti-complement drugs have shown promise in treating COVID in several small trials. Larger trials are now underway.
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.
Any COVID-19 vaccine is likely to be given first to higher risk groups before it is given to children. But we still need vaccines that are safe and effective for them too.
Reports of reinfection shouldn't be cause for alarm. If we gather the right data, they can teach us a lot about the immune response.
Most genes in the human body can be disrupted by man-made chemicals.
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Man-made chemical disrupt the activities of most human genes. What effect does this have on human health and how should regulators respond?
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.
Are patients with severe COVID-19 victims of their own immune response?
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Patients suffering from severe COVID-19 may be experiencing a rogue antibody response similar to that seen in autoimmune diseases. The findings offer new approaches for COVID-19 therapy.
A worker inspects vials of a SARS CoV-2 vaccine for COVID-19 produced by SinoVac at its factory in Beijing on Sept. 24, 2020.
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Our first exposure to a pathogen, either naturally or via vaccination, can affect how our immune system responds in the future to the same or similar pathogens.
Both President Donald Trump and first lady Melania Trump have tested positive for COVID-19.
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The president and first lady Melania Trump have both tested positive for the coronavirus. Here's what the physicians and scientists know about the best treatments for the disease it causes.
Masking up is one way to cut down on risk of COVID-19 infection.
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Older coronavirus patients face grimmer outlooks. A virologist explains the aging-related changes in how immune systems work that are to blame.
This antibody adopts a Y-shape. The arms of the Y make up the part of the antibody that binds to the target.
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Antibodies are great for neutralizing viruses. But they are big and bulky. Antibody engineers are now creating smaller synthetic antibody-like molecules that may be better for fighting COVID-19.
How much longer must society wait for a vaccine?
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Several vaccines are in Phase 3 trials. So when will we know whether any of these will protect against COVID-19?