Legionnaires' disease diagnosed with the disease and five of them dying from it. In Quincy, Illinois, at the Illinois Veterans home, a 2015 outbreak of the disease killed 12 people and sickened more than 50 others. It was believed to be caused by infected water supply. Three more cases have been identified as of November 2017. In the fall of 2017, 22 cases were reported in a Legionnaires' disease outbreak in Anaheim, CA's Disneyland theme park. It was believed to have been caused by a cooling tower that releases mist for the comfort of visitors. The contaminated droplets likely spread to the
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