legionella pneumophilia bacteria in water, causing legionnaires' disease, medically 3d . generative ai

legionella pneumophila bacterial infection legionnaires 039 disease legionellosis waterborne pathogen gramnegative bacteria intracellular respiratory illness outbreak contamination risk assessment environmental reservoir prevention control monitoring regulations guidelines remediation management cooling hot water systems air conditioning plumbing biofilm formation colonization sampling culture pcr detection diagnostics serogroups virulence egionella epidemiology outbreaks symptoms treatment antibiotics measures public health surveillance quality awareness education pneumophilia causing legionnaires' medically generative gram-negative bacterium responsible severe form aquatic environments transmitted humans inhalation aerosolized droplets infections