Many factors influence our risk of illness from SARS-CoV-2, the coronavirus responsible for COVID-19. That includes being careful to limit our possible exposures to the virus, as well as whether we have acquired immunity from a vaccine or an earlier infection. But once a person is infected, a host of other biological factors, including age and pre-existing medical conditions, will influence one’s risk of becoming severely ill.

Vaccines against SARS-CoV-2 are based on a range of novel vaccine platforms, with adenovirus-based approaches (like ChAdOx1 nCov-19) being one of them. Recently a rare and novel complication of SARS-CoV-2 targeted adenovirus vaccines has emerged: thrombosis with thrombocytopenia syndrome (TTS). TTS is characterized by low platelet counts, clot formation at unusual anatomic sites and platelet-activating PF4-polyanion antibodies reminiscent of heparin-induced thrombocytopenia. Here, we employ in vitro and in vivo models to characterize the possible mechanisms of this platelet-targeted autoimmunity.

The World Health Organization (WHO) today is certifying China as free of malaria, after a decadeslong effort drove an estimated annual toll of 30 million cases in the 1940s, including 300,000 deaths, to zero in 2017. Along the way, China developed new surveillance techniques, medicines, and technologies to break the cycle of transmission between the Anopheles mosquitoes that spread malaria parasites and humans.

Remains of man found in Latvia had DNA fragments and proteins of bacterium that causes plague

A coronavirus epidemic broke out in East Asia around 25,000 years ago, and the evidence is in our genes. Researchers say the finding could shed light on how to fight COVID-19.

Trial of Wolbachia-infected insects draws praise for new disease control method

The Covid-19 pathogen has a genetic footprint that has never been observed in a natural coronavirus.

Scientist detected 32 virus mutations in the woman's body, including some seen in variants of concern. It's unclear if she passed on any of them.

All pandemic long, scientists brawled over how the virus spreads. Droplets! No, aerosols! At the heart of the fight was a teensy error with huge consequences.

One of the Big Questions about SARS-CoV-2, the virus that causes COVID-19, has for a while been about its origins. Most viruses that cause disease in humans have long, fascinating origin stories, with jumps from animal to animal until they finally ma

The Seychelles is causing concern for world health experts after a rise of Covid-19 cases among fully vaccinated individuals.

In a deeply personal interview with The Hollywood Reporter, Porter reveals the secret he’s been holding on to for 14 years: being HIV-positive.

The vaccine for human papillomavirus (HPV) is recommended in the United States for all young people up to age 26 to help prevent certain deadly cancers.

The Black Death, which killed millions throughout Europe in a pandemic stretching from the 14th to 19th century, was likely spread by parasites such as fleas and lice carried on the human body.

What side are you on, paper or dryer? In either case, here's the bottom line on what to do after using the toilet.

A highly infectious variant of COVID-19 that has spread around the world since it was first discovered in Britain late last year is between 30% and 100% more deadly than previous dominant variants, researchers said on Wednesday.

The refusal by Australia. the US, UK and EU to waive intellectual property rights to Covid-19 vaccines will cause millions of deaths in Third World and virus mutations will come back to the west.

People are trying to treat and prevent COVID-19 by taking ivermectin, a medication commonly used to de-worm horses – and they are poisoning themselves in the process.

Surface transmission is a very uncommon way of getting COVID. We should focus most of our attention on the airborne route, potentially saving millions of dollars on obsessive cleaning practices.

A man brewed a tea from "magic mushrooms" and injected the concoction into his veins; several days later, he ended up at the emergency department with the fungus growing in his blood.