Legionella Testing Market, By Test Type (Culture Method, Urinary Antigen Test (UAT), Direct Fluoroscent Antibody (DFA) Test, Polymerase Chain Reaction (PCR), Other Test Types), By Sample Type (Water, Biofilm, Swab Samples), By Application (Clinical Testing Method and Environmental Testing Method), By End User (Hospital, Clinics, Diagnostics Laboratory, Water Treatment Industries), By Geography (North America, Latin America, Europe, Middle East & Africa, and Asia Pacific)