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The analysis adds new details to the picture of migration and mixing in a diverse country.

Electron microscopy revealed that a deadly disease of birds was not a form of flu, but a different type of virus entirely.

Microscopic analysis of charred, shapeless lumps from archaeological sites revealed ancient cereal grains that may have undergone malting to make beer.

The MIT physicist has demonstrated the importance of clusters of RNA polymerase and other transcription mediators in regulating RNA production.

When mice that had suffered a stroke were given blood from a healthy donor, they experienced less tissue and neurological damage.

Cases of dengue were greatly reduced in areas of a city where Wolbachia-infected mosquitos were released, according to preliminary data from a field study.

The school requires each student, faculty, and staff member to be tested twice per week and sends the results straight to their cell phones.

A study of Nicaraguan children links prior Zika virus infection with aggravated dengue fever symptoms.

Some critically endangered animals are on the list.

Excess of the inflammatory molecule bradykinin may explain the fluid build-up in the lungs of patients with coronavirus infections. Clinical trials of inhibitors are putting this hypothesis to the test.

Officials had initially linked 97 cases to a single conference held by Biogen in February in Boston, but a new study tracking viral genomes suggests the number may be as high as 20,000.

The category 4 storm made landfall on the Gulf Coast early this morning. Evacuation orders have students heading for safety.