Nearly one in two seniors in Ontario who visited a family doctor for a non-bacterial infection received an unnecessary antibiotic prescription, according to a new study from the Institute for...

While bacterial vaginosis can usually be treated with antibiotics, some women prefer to try home remedies first. Are they effective? What are the risks?

Bacteria that live in the nose and throat could be key to warding off childhood infections, say researchers.

Scientists plan to release millions of sterile, male bacteria-infected mosquitoes in California, to breed with wild females. They're hoping for a "steep decline" in the species that carries Zika.

In addition to the Cas9 protein that bacteria use to bind and snip DNA, bacteria have other Cas proteins that know where to insert that viral DNA into the CRISPR region to remember which viruses have attacked and mount a defense. A research team has discovered how these proteins -- Cas1 and Cas2 -- locate and insert the viral DNA, and it relies on the flexibility of these enzymes and the shape of the DNA.

A new study finds that tallgrass prairie restoration at a large Illinois preserve is working at a foundational level -- in the soil. Bacteria in the soil are recolonizing and recovering on their own to resemble soil found in remnant prairies. The study shows that a carefully managed restoration can produce successes even beyond easily-recognized plant and animal biodiversity.

Biologists have found that a crucial window in the development of tadpoles may influence a frog's ability to fight infectious diseases as an adult. The scientists showed that an early-life disruption of the gut and skin bacterial communities of tadpoles later affects the adult frogs' ability to fight off parasitic gut worms.

Contaminated ice was found at three major fast food restaurants.