A study explains how Zika was present among mosquitoes in Africa for decades without causing the harm to human health seen outside the continent in recent years.
Questions about how E. coli evolves; spermatids in a dish; fighting bacteria with virus-like molecule; what drives metastasis; antibodies fight Ebola in monkeys
More than 320,000 mammalian viruses lurk; evolution of echolocation in bats and dolphins; accumulation of mutations in drug-resistant tuberculosis; senior researchers reluctant to retire
Beaks did it for Darwin. Now, monitoring real-time evolution of bacteria that infects finch eyes reveals repeated, rapid evolution of an emerging avian pathogen in backyards throughout the U.S.
The second of the two controversial bird flu papers is published in Science, revealing that just five mutations can render the virus transmissible between ferrets.
One of the researchers who created a highly transmissible form of the bird flu virus has broken his silence and shared which mutations made it possible.