A citrus disease spread by a tiny insect has devastated Florida's orange crop, which is expected to be the worst in nearly 30 years, and sent juice prices soaring on New York markets.
A salmonella outbreak in raw chicken has sickened nearly 300 people in the US,as consumer advocates warned the federal shutdown was hampering a government response.
New Zealand warned international health authorities Saturday of exported dairy products, including infant formula, containing a bacteria that could lead to botulism -- a potentially fatal illness.
Researchers have disproved a long-held theory about how some bacteria survive antibiotics and opened the door to new treatments to fight drug-resistant bugs.
Gene detectives on Sunday said they had pinpointed how a hospital superbug arose in North America in the early 2000s and spread to Europe before becoming a source of global concern.
Researchers have found bacteria thriving beneath ice, in the dark and without oxygen in a lake in Antarctica, pushing the boundaries of what was thought necessary to sustain life on Earth.
Two scientific papers published Sunday disproved a controversial claim made by NASA-funded scientists in 2010 that a new form of bacterial life had been discovered that could thrive on arsenic.