Vaccines may protect against new COVID-19 strains—and maybe the common cold
In a new study from Johns Hopkins Medicine, researchers found that immune system cells also known as helper T cells—produced by people who have...
Many COVID-19 survivors have a higher risk of death, serious illness
As the COVID-19 pandemic has progressed, it has become clear that many survivors — even those who had mild cases — continue to manage...
Delaying second dose of COVID-19 vaccines may be a good strategy
Two of the COVID-19 vaccines currently approved in the United States require two doses, administered three to four weeks apart.
But there are little data...
Why some people have severe COVID-19, while others have no symptoms
In a new study from Newcastle University and elsewhere, researchers found differences in the immune response to COVID-19 between people with no symptoms and...
Why COVID-19 vaccines linked to blood clotting
In a new study from the University of Liverpool, researchers looked at rare cases of blood clots in the brain and low platelets seen...
Keeping your teeth clean could help lower COVID-19 severity
In a new study from the University of Birmingham and elsewhere, researchers found that COVID-19 could pass into people's lungs from saliva with the...
These common supplements may reduce your risk of COVID-19
In a new study from King's College London, researchers found that taking multivitamins, omega-3, probiotics or vitamin D supplements may lessen the risk of...
Brazilian COVID-19 variant much more transmissible, study finds
In a new study from Imperial College London and elsewhere, researchers found evidence that the P.1 coronavirus variant that was first seen in parts...
People with COVID-19 more likely to die after this heart problem
In a recent study at the University of Gothenburg, researchers found that COVID-19 patients who suffer a cardiac arrest either in or out of...
Dogs can sniff out COVID-19 with impressive accuracy
In a new study from the University of Pennsylvania, researchers found that specially trained detection dogs can sniff out COVID-19-positive samples with 96% accuracy.
They...