Cattle remains are still fed to chickens and the poultry litter is fed back to cows. In this way, prions -- the infectious proteins that cause mad cow disease -- may continue to cycle back into cattle feed and complete the cow "cannibalism" circuit blamed for the spread of the disease.
The genetics and genomics of bacterial antibiotic resistance and virulence teach us some fundamentally important lessons about evolution. They also pose some significant challenges to scientific explanation.
The U.S. Food and Drug Administration announced Thursday its withdrawal of a decades-old proposal to limit the use of antibiotics in animal feed, a mo...
BOLINAS, CALIFORNIA - A recent recall of 500 million eggs for potential salmonella contamination brought to light the crowded, filthy, and utterly una...
The smog in California's San Joaquin Valley has puzzled scientists for years. Even though the region is largely rural and agricultural, its smog level...