Tietoa vesijärjestelmien mikrobien, erityisesti legionellojen aiheuttamasta saastumisesta sekä suosituksia seurannasta ja torjunnasta löytyy mm. seuraavista ohjeistoista:
World Health Organization (WHO 2010): Water safety in buildings.
World Health Organization (WHO 2007): Legionella and the prevention of legionellosis.
Eurooppalainen ohjeisto (EWGLI & EWGLINET January 2005): European guidelines for control and prevention of travel associated Legionnaires' disease. (Ohjeistoa parhaillaan päivitetään ELDSNet:n ja EWGLI:n toimesta).
World Health Organization (WHO 2006) : Guidelines for safe recreational water environments, Volume 2, Swimming pools and similar environments.
World Health Organization (WHO 2004): WHO Guidelines for drinking-water quality, third edition, Volume 1 - Recommendations.
Brittiläinen ohjeisto (PHLS Atypical Pneumonia Working Group / Lee, J. and Joseph C. 2002): Guidelines for investigating single cases of Legionnaires' disease. Communicable Disease and Public Health 5:157-162.
Brittiläinen ohjeisto (Health and Safety Executive 2000): Legionnaires' disease: The control of legionella bacteria in water systems. Approved code of practice and guidance. L8,
Yhdysvaltalainen ohjeisto (American Society of Heating, Refrigerations and Air-conditioning Engineers, ASHRAE 2000): Guideline 12-2000 -- Minimizing the Risk of Legionellosis Associated with Building Water Systems. ISBN/ISSN: 1049-894-X (maksullinen).
Yhdysvaltalainen ohjeisto (Centers for Disease Control and Prevention, CDC 2004): Guidelines for preventing health-care-associated pneumonia, 2003, Morbidity and Mortality Weekly Report (MMWR) March 2004, 53(RR03);1-36.
Yhdysvaltalainen ohjeisto (Allegheny County Health Department, ACHD 1997): Approaches to prevention and control of legionella infection in Allegheny County Health Care Facilities , www.legionella.org.
Australialaisia ohjeistoja (State Government of Victoria): Useita ohjeistoja aiheittain.