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 ...

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 ...

In July 2021, a Centers for Disease Control and Prevention presentation obtained by the press noted that the delta variant of COVID-19 “is as transmissible as chickenpox.” As some researchers have ...

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 ...

As humans alter the planet’s climate and ecosystems, scientists are looking to Earth’s history to help predict what may unfold from climate change. To this end, massive ice structures like glaciers ...

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 fact, anti-vaccine leagues began as a reaction against government vaccine mandates, as well as a backlash against ...