Viruses are smaller than bacteria. For example, at 45 nanometers (1 nanometer = 0.000001 millimeter), the hepatitis virus is approximately 40 times smaller than E.coli. By comparison, a human red ...

Seven kinds of virus collectively comprise an important cause of cancer, particularly in less developed countries and for people with damaged immune systems. Discovered over the past 54 years, most of ...

Though we often think of viruses as being harmful, only a small percentage of the millions of known species are pathogens. In fact, viruses are all around us, playing helpful and intricate roles in ...

New research has uncovered a social world of viruses full of cheating, cooperation and other intrigues, suggesting that viruses make sense only as members of a community. Ever since viruses came to ...

Now, in a new study looking at how these viruses were introduced and spread in North America, Louise H. Moncla from the ...

In the past few years millions of people around the world have radically changed their way of life to avoid contact with other people and, thus, the novel coronavirus. Despite social distancing, many ...

Plant-infecting viruses cause significant losses to agriculture, including to staple crops such as wheat, maize, and rice. Preventing and managing endemic and emerging plant diseases is an ongoing ...

The DNA of some viruses doesn’t use the same four nucleotide bases found in all other life. New work shows how this exception is possible and hints that it could be more common than we think. All life ...

The World Health Organization and China released a long-awaited joint report into the origins of COVID-19 on Tuesday, pointing to transmission from bats to another animal and subsequently to humans as ...