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COVID

Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus.
Most people who fall sick with COVID-19 will experience mild to moderate symptoms and recover without special treatment. However, some will become seriously ill and require medical attention.

Long COVID stemmed from mild cases of COVID-19 in most people

Even mild COVID-19 cases can have major and long-lasting effects on people’s health.

Vaccine and past COVID infection offer long-lasting protection from omicron BA.5

In a study from the University of Lisbon and elsewhere, scientists found vaccines and past COVID infection offer long-lasting protection from omicron BA.5. A previous...

How COVID can disturb your sleep and dreams – and what could help

By the end of 2022, more than 650 million COVID infections had been reported to the World Health Organization. With the true number likely much...

Inflammation in COVID-19 can change the smallest vessels in the heart

Scientists found how inflammation in COVID-19 can change the smallest vessels in the heart.

Scientists find new way to tackle long COVID

Long COVID has emerged as a pandemic within the pandemic. As scientists work to untangle the many remaining unanswered questions about how the initial infection...

Scientists find four major types of long COVID

In a study from Weill Cornell Medicine, scientists found the post-COVID syndrome known as long COVID has four major subtypes defined by different clusters...

Getting booster in time can reduce omicron reinfection, severe disease

In a study from The University of Hong Kong and elsewhere, scientists found that the timely third vaccination of either CoronaVac or BNT162b2 strongly...

Brain game may predict your infection risk

Scientists found if your alertness and reaction time are see-sawing more than usual, you may be more at risk of a viral illness.

This eye disease linked to severe COVID-19 in older people

Recent studies suggest that age-related macular degeneration (AMD) is a clinical risk factor for increased risk for infection and mortality. AMD has been reported to...

Scientists develop a new mRNA vaccine strategy to fight the flu

In a study from the University of Minnesota, scientists developed a new mRNA vaccine strategy to fight the flu.