They identified a previously unrecorded species of Candidatus, a group of disease-causing bacteria that infect many sorts of plant.

ECONOMIST: Plant disease

Disease-causing bacteria such as Salmonella survive by modifying these bags in order to avoid these attacks and to multiply.

BBC: Breakthrough in killer bacteria fight

Disease-causing organisms such as staphylococcus aureus and pneumonia-causing bacteria have been detected in paper bills.

CNN: 90 percent of U.S. bills carry traces of cocaine