LEGIONELLA - World Health Organization

surveillance The process of systematic collection, orderly consolidation,
and analysis of data, with prompt dissemination and feedback
of the results to those who need to know, particularly those
who are in a position to take action.
travel-associated Cases of legionellosis acquired during travel (e.g. from a
cruise ship or a hotel).
treatment target Direct specification of acceptable technologies for specific
circumstances.
validation The process of obtaining accurate and reliable evidence
that a water safety plan is effective.
verification The application of methods, procedures, tests and other
evaluations, in addition to monitoring, to determine compliance
with a water safety plan.
virulence Degree of an organism’s ability to cause disease, as indicated
by mortality rate from the related disease, or its ability to
invade tissues and cause disease.
water safety plan A comprehensive risk assessment and risk management
approach that encompasses all steps in water supply, from
catchment to consumer.
whirlpool bath Type of hot tub sometimes found in bathrooms of hotel rooms
or private residences. The bath is fitted with high-velocity water
jets or air injection, and the water is emptied after each use.
See also hot tub.
LEGIONELLA AND THE PREVENTION OF LEGIONELLOSIS