Polio is not endemic in the United States, but the disease is circulating in 30 other countries now. A doctor explains how to protect against polio when traveling.

Student Health said that the virus has some symptoms similar to the common cold.

Myalla and her joey, Arru, are two of the koalas whose DNA was sequenced for the project. Photo: San Diego Zoo Wildlife Alliance. The San Diego Zoo cares for the largest population of koalas outside ...

Age, biological sex, and human genetic factors influence the production of antibodies during the immune response. A team of scientists from the Institut Pasteur, the CNRS and the Collège de France ...

Today’s column continues the theme of plant viruses introduced in this column last week. A virus can reduce a plant’s growth, lower its yield and result in inferior fruit, vegetables and flowers.

The story of life’s beginnings gets stranger when you look closely at viruses. These tiny entities seem to sit at the edge of biology. They carry genetic material, but they cannot make proteins on ...

The Mariana Trench, the deepest place on Earth, plunges nearly 11,000 meters at its lowest point on the floor of the Pacific Ocean. Life persists in the deep and cold darkness, and "wherever there's ...

Cases of human metapneumovirus, or HMPV, are on the rise in parts of California. It typically causes mild, cold-like symptoms ...