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
Sociality and disease transmission Sociality and disease transmission The effects of how social grouping strategies may reduce or increase the spread of disease is critical for the health of large groups of people. Places with large amounts of human interaction have a high risk for disease transmission. Social groups, community structures, and different cultures have different strategies and behaviors of reducing the spread of disease. Animals groups and humans that live in a place with high population density have an increased risk of disease prevalence. Some ways that large groups can help reduce the spread of disease is to have clean water supply and