COVID

Coronavirus disease 2019 is a contagious disease caused by severe acute respiratory syndrome coronavirus 2. The first case was identified in Wuhan, China, in December 2019. The disease has since spread worldwide, leading to an ongoing pandemic. Symptoms of COVID-19 are variable, but often include fever, cough, fatigue, breathing difficulties, and loss of smell and taste. Symptoms may begin one to fourteen days after exposure to the virus. At least a third of people who are infected do not develop noticeable symptoms. Of those people who develop noticeable symptoms, most develop mild to moderate symptoms, while 14% develop severe symptoms, and 5% suffer critical symptoms. Older people are more likely to have severe symptoms. Some people continue to experience a range of effects—known as long COVID—for months after recovery, and damage to organs has been observed. Multi-year studies are underway to further investigate the long-term effects of the disease.

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People with some cancers live longer after a COVID vaccine: mRNA vaccines seem to boost the effectiveness of an immune therapy for skin and lung cancer.

COVID-related smell loss may last years

mRNA-based COVID vaccines generate improved responses to immunotherapy

Cancer patients who got a COVID vaccine lived much longer

ESMO 2025: mRNA-based COVID vaccines generate improved responses to immunotherapy - EurekAlert!

COVID's Surprising Effect on Sperm May Impact Future Generations

Scientists finally reveal what’s behind long COVID’s mysterious brain fog

Millions could be living with hidden smell loss after COVID without knowing

Doctors tested a common drug on COVID. The results are stunning

Study models how human behavior, lockdowns and restrictions shaped COVID’s spread - EurekAlert!

Minnesota defies feds with COVID vaccine guidance, aligning with national medical organizations in encouraging broader use of the vaccines.

Major report tackles Covid’s cardiovascular crisis head-on - EurekAlert!

Long covid may be making your periods longer and heavier

A common nasal spray may help prevent Covid. What a new study shows

Disposable face masks used during Covid have left chemical timebomb. An estimated 129bn were being used every month around the world at height of the pandemic, with no recycling stream and are now breaking down, releasing microplastics and chemical additives including endocrine disruptors.

Covid Could Be Quietly Aging Your Arteries by Five Years

A cold today helps keep the COVID away

The common cold’s unexpected superpower against COVID

Shifting vaccine guidelines inject uncertainty into getting fall COVID shots

South Florida childhood vaccination rates plunge: Who is vulnerable, and why? "After COVID, people have gotten more educated about vaccines and have started questioning things that weren't questioned before," said Daniela Rodriguez, a Broward County mother.