Guidelines For Drinking-water Quality: Addendum Microbiological Agents In Drinking Water
by World Health Organization /
2002 / English / PDF
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This Addendum to the second edition of the Guidelines for
drinking-water quality contains reviews of a number of pathogens
that occur widely in water - Aeromonas and Legionella spp., Vibrio
cholerae, enteric hepatitis viruses, and protozoan parasites
(Cryptosporidium, Giardia, and Cyclospora spp.). These review
documents supersede, and are more comprehensive than, those
previously published in Volumes 1 and 2 of the Guidelines.
This Addendum to the second edition of the Guidelines for
drinking-water quality contains reviews of a number of pathogens
that occur widely in water - Aeromonas and Legionella spp., Vibrio
cholerae, enteric hepatitis viruses, and protozoan parasites
(Cryptosporidium, Giardia, and Cyclospora spp.). These review
documents supersede, and are more comprehensive than, those
previously published in Volumes 1 and 2 of the Guidelines.
Unlike the analogous chemical reviews in the Guidelines, the
microbiological review documents do not conclude with "safe" or
"tolerable" exposure levels for the pathogens. The microbiological
quality of drinking-water can vary rapidly and widely, and even
brief exposures to pathogens may have serious health consequences.
Analytical techniques for recognized pathogens may be
time-consuming and complex, and are not always available, and
knowledge of the identity of waterborne pathogens is in any case
incomplete. The microbiological reviews therefore summarize current
knowledge of transmission, attenuation, and removal of the
individual pathogens, and of the effectiveness of measures for
interrupting transmission.
Unlike the analogous chemical reviews in the Guidelines, the
microbiological review documents do not conclude with "safe" or
"tolerable" exposure levels for the pathogens. The microbiological
quality of drinking-water can vary rapidly and widely, and even
brief exposures to pathogens may have serious health consequences.
Analytical techniques for recognized pathogens may be
time-consuming and complex, and are not always available, and
knowledge of the identity of waterborne pathogens is in any case
incomplete. The microbiological reviews therefore summarize current
knowledge of transmission, attenuation, and removal of the
individual pathogens, and of the effectiveness of measures for
interrupting transmission.