Legionnaires' disease fever experience fever and muscle aches without pneumonia. They generally recover in 2-5 days without treatment. For Pontiac fever, the time between exposure and symptoms is generally a few hours to 2 days. Over 90% of cases of Legionnaires' disease are caused by "Legionella pneumophila." Other types include "L. longbeachae", "L. feeleii", "L. micdadei", and "L. anisa". Legionnaires' disease is usually spread by the breathing in of aerosolized water and/or soil contaminated with the "Legionella" bacteria. Experts have stated that Legionnaires' disease is not transmitted from person to person. In 2014, one case of possible spread from someone sick to
Lyme disease spread. In Europe ticks of the "Ixodes ricinus" type may spread the bacteria more quickly. In North America, "Borrelia burgdorferi" and "Borrelia mayonii" are the cause. In Europe and Asia, the bacteria "Borrelia afzelii" and "Borrelia garinii" are also causes of the disease. The disease does not appear to be transmissible between people, by other animals, or through food. Diagnosis is based upon a combination of symptoms, history of tick exposure, and possibly testing for specific antibodies in the blood. Blood tests are often negative in the early stages of the disease. Testing of individual ticks is not typically useful.