Home Risk Management/Safety Staten Island Nursing Home’s Water Systems Test Positive for Legionella Staten Island Nursing Home’s Water Systems Test Positive for Legionellaadmin Nov 03, 2022 0 Comments One person tested positive for Legionellosis, a disease caused by exposure to Legionella bacteria, at Eger Health Care and Rehabilitation Center in Egbertville after water tests at the facility found high levels of the bacterium.