Ticks can transmit various diseases to people and animals. Some well-known diseases spread by ticks include tick-borne encephalitis (TBE) and Lyme disease. Researchers are hot on the trail of pathogens carried by ticks. The parasitologists recently discovered a new form of the bacterium Candidatus Neoehrlichia in a red fox from the Austrian state of Vorarlberg. The pathogen might also be transmittable to humans, they warn.