People who’ve had Covid-19 are highly unlikely to contract it again for at least six months after their first infection, according to a British study of healthcare workers on the frontline of fight...

Antibodies against the novel coronavirus declined rapidly in the British population during the summer, a study found on Tuesday, suggesting protection after infection may not be long lasting and raising...

N95 respirators, which are widely worn by health care workers treating COVID-19 patients, and are designed to be used only once, can be decontaminated effectively and worn up to three times, according...

An increasingly common mutation of the novel coronavirus found in Europe, North America and parts of Asia may be more infectious but appears less deadly, according to a prominent infectious diseases doctor....

As dengue season sets in across large parts of India with the onset of the monsoon, scientists warn that COVID-19 and the mosquito-borne disease have overlapping symptoms and worry the country’s...

Scientists have experimented with non-medical grade masks, and found that well-fitted ones made from stitching two layers of quilting cotton fabric are the most effective in stopping the spread of cough...

Studies show people with the coronavirus are most infectious just at the point when they first begin to feel unwell, World Health Organization (WHO) experts said on Tuesday. This feature has made it so...