A new strain of Ebola virus has infected 51 people and killed 16 in an area near Uganda’s border with Democratic Republic of Congo.

Researchers have decoded the gene map of a strain of extensively drug-resistant tuberculosis. Their work has identified mutations that may help develop better treatments.

A strain of virus best known for causing colds and "stomach flu" is becoming more common and more dangerous, U.S. researchers report.

Doctors said Thursday that a genome for one strain of an extensively drug-resistant tuberculosis has been sequenced — a finding they say could help fight the deadly disease.

Canadian veterinary officials said on Thursday they have found the H7N3 strain of avian influenza on a Saskatchewan chicken farm, but noted the case was not the highly pathogenic H5N1 strain seen elsewhere.