How did viruses evolve? Are they a streamlined form of something that existed long ago, or an ultimate culmination of smaller genetic elements joined together? Aa Aa Aa The evolutionary history of ...

Researchers have proposed a new evolutionary model for the origin of a kingdom of viruses called Bamfordvirae, suggesting a billion-years evolutionary arms race between two groups within this kingdom ...

Humans have been fighting viruses since the species has existed. For some viral diseases, vaccines and antiviral drugs have prevented widespread infection or helped people recover. And we've even been ...

Using genomics, evolutionary biologists test several hypotheses on the origin of viruses. New evidence suggests they may have emerged more times than previously thought. Corroborating the virus-first ...

Evolution optimizes all creatures, from viruses to elephants, to their environment. Where do new variants come from, especially Omicron which is so different from previous variants? There may be a ...

A declassified report said a clearer answer would require more information from Beijing or new discoveries and reiterated divisions over natural causes vs. a lab leak. By Julian E. Barnes WASHINGTON — ...

In a recent study published in Emerging Infectious Diseases, researchers determined the zoonotic transmission potential of influenza A viruses (IAVs) H3 subtype of avian, equine, and swine origin. H3 ...

Scientists have said that a type of snake may be the original source of the Wuhan coronavirus. However, other infectious disease experts say the ultimate culprit is more likely to be the bat.

Genetic group 29 is similar to the “Georgia 2007” strain, which is frequently used in biological confinement facilities to ...

Events such as the World Cup could have facilitated the spread, scientists say. — -- It’s not just humans who can travel rapidly across the world. Viruses and disease-spreading insects and ...