A new study has revealed that "junk DNA" descended from ancient viruses could play a key role in controlling genes.

Results from early-stage trial show that 80% of participants who received one of two HIV vaccine candidates produced antibodies against viral proteins.

A common plant virus awakens the immune system to fight cancer—and it’s grown using sunlight, soil, and science.

This story revisits the decades-long enigma of hepatitis—once a silent, misunderstood killer—tracing its medical ...