What Makes Good Bacteria Go Bad? It’s Not Them, It’s You

The bacteria that cause many cases of ear infection in kids and pneumonia in the elderly are usually harmless until activated by distress signals from their human host. When the flu or another virus gives you a fever, for example, mild-mannered pneumococcus can turn nasty.

What Makes Good Bacteria Go Bad? It’s Not Them, It’s You

The bacteria that cause many cases of ear infection in kids and pneumonia in the elderly are usually harmless until activated by distress signals from their human host. When the flu or another virus gives you a fever, for example, mild-mannered pneumococcus can turn nasty.

Genetic Code Shows Bird Flu In China Spread Between People

Chinese scientists offer the first clear evidence that the H7N9 bird flu virus can be transmitted from human to human. A father, who became sick in March, passed the virus to his daughter. But the risk of transmission is quite low, and the virus still doesn’t appear to pose a global threat.

Study Finds No Vaccine Link to Guillain-Barré

Concerns about vaccines and the neurological disorder Guillain-Barré syndrome arose after the swine flu epidemic of 1976, but a new analysis found no link between the illness and vaccines for flu or other disorders.