strain

Genetic testing of people who died in Kyrgyzstan eight years before plague reached Europe reveals an ancient strain of the bacterium Yersinia pestis.

This strain of SARS-CoV-2 is causing new outbreaks in Europe and Asia and may spread slightly faster than the better-known BA.1 Omicron subvariant, although it’s too early to say for sure.

Using a novel lab technique, researchers identified a mutation that allows the virus to insert more genetic material into host cells.

Random mutations in the SARS-CoV-2 pathogen’s genome help researchers track the spread and transmission of COVID-19, the disease it causes.

They may be a prospective source for an influenza pandemic, researchers warn.  

For decades, Matthews led two important repositories for fruit fly research: the Bloomington Drosophila Stock Center and FlyBase.  

Researchers have catalogued mutations in the coding regions of 36 of the most important mouse strains.

A new strain of gonorrhea is resistant to all currently available antibiotics.