Biological production of this greenhouse gas, once thought to be the reserve of anaerobic microbes, occurs in these widespread, photosynthesizing cyanobacteria.

Scientists release a draft genome of the virus that has been identified in 41 patients.

A newly identified group of viruses may help suppress eukaryotes’ immune response and promote tolerance of endosymbiotic bacteria.

Researchers suggest the viruses can help endosymbiotic bacteria get along with their hosts.

Take a peek at one of the biggest collections of bacteria and fungi in the world.

The East Coast campus of the research institute received shipments of freeze-dried or frozen samples of more than 210,000 microbial strains, which scientists plan to mine for potentially useful natural products.

Recent work in humans and mice highlights how exposure to environmental microbes helps protect against allergies and other inflammatory diseases.

Health officials are rushing a genetically engineered product into the field to counter uncontained outbreaks of vaccine-derived polio.

View the top three winners of this year’s Nikon Small World in Motion Competition.