A dog food company is voluntarily recalling a product sold in Pennsylvania and six other states due to possible salmonella contamination. The recall involves Blue Ridge Beef's 2-pound log Puppy Mix.

But they are increasingly facing a crafty adversary: bacteria that mutate and adapt and outwit the very drugs designed to ...

Proboitics and vaccines for two E.coli strains could hold the key to reducing bladder and colon cancer, researchers suggest ...