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.

A study of 45 countries shows those who have contained the virus also tend to have less severe economic impacts than those which haven’t

Scientists in the UK have just recruited the first participants in the world to be part of a new long-acting antibody study.

The recovery from the most traumatic global economic catastrophe since the Great Depression will be far from equal.

How the immune system adapts to pregnancy has puzzled researchers for decades. An international team of researchers, including scientists from IMBA – Institute of Molecular Biotechnology of the Austrian Academy of Sciences – has now discovered that important changes in the thymus occur in order to prevent miscarriages and gestational diabetes. The results are published in the journal Nature.

A young Australian man who was critically ill with COVID-19 and suffering early stages of sepsis made a remarkable recovery after being given massive doses of vitamin C, according to his doctors.

While COVID-19 has ravaged much of the globe, Cambodia has just this week declared its first case of "community transmission". How has it managed to avoid any deaths so far? Could it be that the virus came from bats in this area and the locals have a natural immunity?

Even after recovery, the body continues to improve its antibody response to the coronavirus — perhaps thanks to viral bits hiding in the intestine. As coronavirus cases in the United States and around the world rise, scientists are uncovering hints that immunity for those who have had COVID-19 can last at least six months, if not longer.

A pizza bar worker with Covid-19 who lied about their employment activities triggered a lockdown across the entire state of South Australia, authorities were forced to admit Friday.

How many people in the United States have died from COVID-19? At the end of October, the Centers for Disease Control and Prevention’s official tally passed 215,000, making COVID the nation’s third-leading cause of death. But can we trust that number? The CDC count surpassed 200,000 at the end of September, yet the New York Times reported that the “true coronavirus toll” had topped 200,000 a full month and a half earlier, on August 12. Then there are the skeptics who have claimed that the official numbers grossly exaggerate the situation.

Bishop Peder Winstrup died in what is now Sweden in 1679 CE, when tuberculosis (TB) was ravaging Europe. His body was placed in a cool, dry crypt, and lay untouched for nearly 250 years. When the crypt was first opened in 1923, scientists were surprised to discover that Bishop Winstrup had become mummified, with his clothes and hair perfectly intact. Now, researchers have used his well-preserved lungs, damaged by TB, to understand when this deadly disease began infecting humans.

Lecture 1 of 24 by Dorsey Armstrong

The promising vaccine faces several hurdles to widespread distribution, including the fact that in its current form, it must be stored at ultra-cold temperatures.

Christina Heywood is struggling with her health after catching COVID-19 in a rehabilitation centre while recovering from a new hip. She says it's ridiculous that health officials haven't released the figures for how many patients caught the virus in hospital.