Related Experiment Video
Updated: Jul 18, 2026

09:25
Purification of Pathogen Vacuoles from Legionella-infected Phagocytes
Published on: June 19, 2012
Survival of the Legionnaires' disease bacterium in water
Annals of Internal Medicine
|April 1, 1979
Abstract:
Data from this study indicate that the Legionniares' disease bacterium can survive for a relatively long period of time in water. Four strains survived in distilled water for 69 to 139 d and for 364 to 369 d in tap water. Viable cells from two strains were recovered from tap water at 408 to 415 d. There were no surviving bacteria in cooling-tower water after 24 to 48 h. The rapid die-off was probably due to bactericidal agents added to the water to control growth.
Related Concept Videos
Defense Against Bacterial Pathogens
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Reservoir of Infection
Infectious diseases arise from intricate interactions between pathogens and their reservoirs. A reservoir of infection refers to the natural habitat where a pathogen lives, grows, and multiplies, serving as a continual source of infection. Reservoirs are broadly classified as either living or nonliving, and each plays a unique role in disease transmission, significantly influencing public health interventions and control strategies.Humans act as reservoirs for a wide array of pathogens,...
Cholera
Cholera is an acute gastrointestinal disease caused by the Gram-negative bacterium Vibrio cholerae. It is transmitted primarily via the fecal-oral route through the ingestion of contaminated water or food.Vibrio cholerae is a motile, Gram-negative bacterium of the family Vibrionaceae, primarily associated with waterborne outbreaks in areas with inadequate sanitation. Although over 200 serogroups of V. cholerae exist, only O1 and O139 are responsible for epidemic cholera. The O1 serogroup,...

