If the reader does not believe that viroids and satellites are distinctive, then surely prions, infectious agents composed only of protein, must impress.
The question of whether infectious agents exist without genomes arose with the discovery and characterization of infectious agents associat... Read More
A large community of microorganisms calls the human digestive tract home. This dynamic conglomerate of microscopic life forms - the gut microbiome - is vital to how people metabolize various nutrients in their food, how their immune systems react to infection, and how they respond to various med... Read More
These days, the happiest place on Earth isn't so cheerful. In December, a large number of people started coming down with measles after visiting Disneyland in California. So far, about 80 measles cases have been reported in the state, an unusually large number for a virus that has long been unde... Read More
Many drinking water treatment facilities worldwide disinfect water with ultraviolet light because it’s quick and efficient, kills protozoa such as Giardia, and doesn’t introduce potentially harmful disinfection by-products. But a new study shows that UV treatment alone can push bacteria into a d... Read More