Spraying disinfectant on the streets, as practiced in some countries, does not eliminate the new coronavirus and even poses a health risk, the World Health Organization (WHO) warned on Saturday.

Europe and the United States have seen sharp surges in recent weeks of a severe immune disorder in children linked to COVID-19, health authorities reported Friday, sounding an alarm.

Used PPE is generally labelled as infectious or offensive, which means disposal needs to prevent the transmission of disease to the wider population.

New US research has found that a woman's genes may increase her risk of weight gain if she uses certain contraceptive implants.

Microdroplets generated by speech can remain suspended in the air in an enclosed space for more than ten minutes, a study published Wednesday showed, underscoring their likely role in spreading COVID-19.   

Skin cells reprogrammed to produce the neurotransmitter dopamine and inserted deep into the brain of a 69-year-old man with Parkinson's disease have allowed him to tie his shoes again and resume swimming and biking, researchers reported in The New England Journal of Medicine on Wednesday.

More than one million people around the world have been deemed recovered from the coronavirus, but beating the initial sickness may be just the first of many battles for those who have survived.

If lockdowns and stay-at-home orders are succeeding in slowing the spread of the coronavirus, health experts warn that the measures could unintentionally undermine efforts to contain another potentially deadly disease: HIV.

A myriad of inspirational, beautiful and manipulative commercial messages from the tobacco industry greet Indonesian children and youths every day through various channels.

Pregnant women are no more likely to become severely ill with COVID-19 than other women, but most expectant mothers who do develop serious illness tend to be in the later stages of pregnancy.

The COVID-19 pandemic has a clear and strong message for 1.3 billion tobacco users around the world and that is to quit smoking.

A “herd immunity” strategy has been criticized by the World Health Organisation, which said far greater action is required. Other health experts say the approach is experimental at best, and dangerous at worst.

Is it safe to nip out for milk? Is it OK to wear my pajamas in a Zoom meeting?

Men's blood has higher levels than women's of a key enzyme used by the new coronavirus to infect cells, the results of a big European study showed.

SARS-CoV-1 and SARS-CoV-2 are closely related viruses. Scientists believe that both viruses originated in bats. The RNA genomes of the viruses are about 80% identical. What does that mean?

The unrelenting horror of COVID-19 has exacted a toll on healthcare workers who have seen patient after patient succumb to a disease that has killed more than 75,000 people in the United States alone in little more than two months.

Why do symptoms in your gut mean you might get a worse case of COVID-19?

Children with COVID-19 threaten recovery from the pandemic -- sparking increased scrutiny of their cases from scientists and policy makers seeking clues about the new coronavirus’ spread and virulence.

If you noticed headlines recently suggesting smoking could protect against COVID-19, you might have been surprised.

The eyes are a key route by which the novel coronavirus infects humans, a study by the University of Hong Kong has found, in addition to the upper respiratory tract, which includes the nose, mouth and throat.

Belgium's top researchers insist that their efforts to isolate an anti-body grown in a llama -- the Andean beast of burden -- is based on a solid lead.

Studies say cooking with gas can increase asthma rates.

A cat belonging to a family in the Spanish region of Catalonia tested positive for the novel coronavirus, the professor who conducted an autopsy on the pet said on Friday.

Researchers in Hong Kong have found that patients suffering milder illness caused by the new coronavirus recover more quickly if they are treated with a three-drug antiviral cocktail soon after symptoms appear.  

Vitamin C, also known as ascorbic acid, is one of the long-known supernutrients, but high-dosage supplementation entails health risks.

Given the high contagiousness of SARS-CoV-2 by non-sexual routes, it is difficult to imagine how this could be substantially increased by sexual transmission.

Coronavirus patients declared recovered who later test positive for the disease are still expelling dead lung cells rather than getting a new infection, the World Health Organization (WHO) told AFP on Wednesday.

A genetic analysis of samples from more than 7,500 people infected with COVID-19 suggests the new coronavirus spread quickly around the world late last year and is adapting to its human hosts, scientists said on Wednesday.

Officials in the northwestern US state of Washington on Wednesday expressed concern over reports of people organizing "COVID-19 parties" to intentionally spread the virus.

But are you immune from COVID-19 if you’ve already been infected?