Legionellosis Topics

• swine flu epidemic
• climate control systems
• flu vaccination
• world health organization
• morbidity and mortality
• vaccination program
• water sanitation
• geneva switzerland
• hotel environment
• centers for disease control and prevention
• human illness
• toxic chemicals
• legionella
• disease control and prevention
• cooling tower
• bacterium
• centers for disease control
• mass media
• developing countries

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Legionellosis, Legionellosis

World Health Organization 2007. Legionella and the prevention of legionellosis. Geneva, Switzerland: WHO. Available at: http://www.who.int/water_sanitation_health/emerging/legionella.pdf Improvements in diagnosis and surveillance in developing countries would be expected to reveal far higher levels of morbidity and mortality than are currently recognised. Similarly, improved diagnosis of human illness related to legionella species and serogroups other than legionella pneumophila would improve knowledge about their incidence and spread.

At the time, the U.S. was debating the risk of a possible swine flu epidemic, and this incident prompted the passage of a national swine flu vaccination program. That cause was ruled out, and research continued for months, with various theories discussed in scientific and mass media that ranged from toxic chemicals to terrorism (domestic or foreign) aimed at the veterans. The U.S. Centers for Disease Control and Prevention mounted an unprecedented investigation and by September, the focus had shifted from outside causes, such as a disease carrier, to the hotel environment itself. In January 1977, the Legionellosis bacterium was finally identified and isolated, and found to be breeding in the cooling tower of the hotels air conditioning system, which then spread it through the entire building. This finding prompted new regulations worldwide for climate control systems.

Source: Wikipedia > Legionellosis