Cows are a source of superbugs, antibiotics-resistant staphylococcus bacteria
Jumping from humans to cattle and back - health science news

Cows appear to be an important source of resistant staphylococcus strains causing infections in humans. Genetic analyses revealed that these bacteria first infected humans, and then colonized cattle following domestication of cows. When they jump to a new species, they make use of new genes from the host to adapt and survive. This can lead to antibiotics resistance, making these bacteria superbugs. Resistant staphylococcus bacteria fall into this category, and have spread in hospitals almost world-wide. This genetic analysis, detailing bacterial evolution of thousands of years, highlights the necessity for epidemiologic monitoring of superbugs, so that they can be detected early before spreading.

Read the full story: University of Helsinki
Scientific publication: Nature Ecology & Evolution