COVID-19 vaccines are 66% effective fighting against Delta variant, study finds
In a new study from the Centers for Disease Control and Prevention, researchers found the effectiveness of the Pfizer and Moderna COVID-19 vaccines against...
Delta variant doubles risk of COVID-19 hospitalization compared to alpha variant
In a new study from the National Infection Service, researchers found people infected with the COVID-19 delta variant have double the risk of hospitalization...
COVID-19 vaccine protection fades within 6 months, study finds
In a new study from King's College London and elsewhere, researchers found the protection from two doses of the Pfizer and AstraZeneca vaccines fades...
For many, long COVID looks a lot like chronic fatigue
In a new study from Johns Hopkins Medicine, researchers found similarities between certain lingering symptoms following COVID-19 illness—a condition called "long COVID"—and myalgic encephalomyelitis/chronic...
COVID-19, not vaccination, presents biggest blood clot risks
In a new study from the University of Oxford, researchers confirmed that COVID-19, not vaccination, presents the biggest blood clot risks.
They reported the findings...
Some patients still have health problems after one year, Wuhan COVID-19 study finds
In a new study from Wuhan, China, researchers found most symptoms of COVID-19 in hospitalized patients are resolved within 12 months, however, around one-half...
Why do some people need a third dose of the COVID vaccine?
As the COVID-19 pandemic has continued, scientists have gathered more data about the coronavirus that’s been waging chaos on a global scale as well...
Recovery from alcohol use disorder is complicated but achievable
In a new study from Yale, researchers found interlinked changes in drinking behavior, mood, and the brain among women and men during recovery from...
COVID-19 is most transmissible 2 days before and 3 days after symptoms appear
In a new study from Boston University, researchers found that people infected with the virus are most contagious two days before, and three days...
What you need to know about the Delta variant
For more than 40 years, UCI infectious disease researcher Michael Buchmeier has studied coronaviruses, and he's one of the leading experts on SARS-CoV-2, the...