Titre :	"Community water supply research and development programme, background paper : ""schistosomiasis and community water supplies"""
Type de document :	texte imprimé
Mention d'édition :	WHO
Editeur :	WHO
Année de publication :	1970
ISBN/ISSN/EAN :	CI-09471
Note générale :	These notes may be summarized as follows : 1) Normal water supply treatment based upon filtration, effective against pathogens, is equally effective against cercariae.slow sand filters are potably better than rapid or pressure sand filters for this purpose/ 2) Chlorination alone should be relied upon under field conditions to kill cercariae completely. It is however a valuable second-stage precaution aigainst filter malfunctioning/ 3) Storage alone, if maintened for 48 hours, is effective but is a clumsy device which in any case has little effect upon pathogenic bacteria or viruses/ 4) exclusion of cercariae from comunity water supplies is a small, but only a smal factor in the control of schistosomiasis. Complete protection of a community can only be effected by a combination of snail control, sanitation mesures, medical treatment by the people themselves.
Langues :	Anglais (eng)
Mots-clés :	Alimentation en eau  Assainissement urbain  Parasitologie  Schistosomiase  Traitement de l'eau  Education sanitaire  Maladie hydrique
Index. décimale :	628.16 Analyse, traitement, pollution
Résumé :	These notes may be summarized as follows : 1) Normal water supply treatment based upon filtration, effective against pathogens, is equally effective against cercariae.slow sand filters are potably better than rapid or pressure sand filters for this purpose/ 2) Chlorination alone should be relied upon under field conditions to kill cercariae completely. It is however a valuable second-stage precaution aigainst filter malfunctioning/ 3) Storage alone, if maintened for 48 hours, is effective but is a clumsy device which in any case has little effect upon pathogenic bacteria or viruses/ 4) exclusion of cercariae from comunity water supplies is a small, but only a smal factor in the control of schistosomiasis. Complete protection of a community can only be effected by a combination of snail control, sanitation mesures, medical treatment by the people themselves.
Note de contenu :	These notes may be summarized as follows : 1) Normal water supply treatment based upon filtration, effective against pathogens, is equally effective against cercariae.slow sand filters are potably better than rapid or pressure sand filters for this purpose/ 2) Chlorination alone should be relied upon under field conditions to kill cercariae completely. It is however a valuable second-stage precaution aigainst filter malfunctioning/ 3) Storage alone, if maintened for 48 hours, is effective but is a clumsy device which in any case has little effect upon pathogenic bacteria or viruses/ 4) exclusion of cercariae from comunity water supplies is a small, but only a smal factor in the control of schistosomiasis. Complete protection of a community can only be effected by a combination of snail control, sanitation mesures, medical treatment by the people themselves.

"Community water supply research and development programme, background paper : ""schistosomiasis and community water supplies""" [texte imprimé]  . -  WHO . - WHO, 1970.
ISSN : CI-09471
These notes may be summarized as follows : 1) Normal water supply treatment based upon filtration, effective against pathogens, is equally effective against cercariae.slow sand filters are potably better than rapid or pressure sand filters for this purpose/ 2) Chlorination alone should be relied upon under field conditions to kill cercariae completely. It is however a valuable second-stage precaution aigainst filter malfunctioning/ 3) Storage alone, if maintened for 48 hours, is effective but is a clumsy device which in any case has little effect upon pathogenic bacteria or viruses/ 4) exclusion of cercariae from comunity water supplies is a small, but only a smal factor in the control of schistosomiasis. Complete protection of a community can only be effected by a combination of snail control, sanitation mesures, medical treatment by the people themselves.
Langues : Anglais (eng)

Mots-clés :	Alimentation en eau  Assainissement urbain  Parasitologie  Schistosomiase  Traitement de l'eau  Education sanitaire  Maladie hydrique
Index. décimale :	628.16 Analyse, traitement, pollution
Résumé :	These notes may be summarized as follows : 1) Normal water supply treatment based upon filtration, effective against pathogens, is equally effective against cercariae.slow sand filters are potably better than rapid or pressure sand filters for this purpose/ 2) Chlorination alone should be relied upon under field conditions to kill cercariae completely. It is however a valuable second-stage precaution aigainst filter malfunctioning/ 3) Storage alone, if maintened for 48 hours, is effective but is a clumsy device which in any case has little effect upon pathogenic bacteria or viruses/ 4) exclusion of cercariae from comunity water supplies is a small, but only a smal factor in the control of schistosomiasis. Complete protection of a community can only be effected by a combination of snail control, sanitation mesures, medical treatment by the people themselves.
Note de contenu :	These notes may be summarized as follows : 1) Normal water supply treatment based upon filtration, effective against pathogens, is equally effective against cercariae.slow sand filters are potably better than rapid or pressure sand filters for this purpose/ 2) Chlorination alone should be relied upon under field conditions to kill cercariae completely. It is however a valuable second-stage precaution aigainst filter malfunctioning/ 3) Storage alone, if maintened for 48 hours, is effective but is a clumsy device which in any case has little effect upon pathogenic bacteria or viruses/ 4) exclusion of cercariae from comunity water supplies is a small, but only a smal factor in the control of schistosomiasis. Complete protection of a community can only be effected by a combination of snail control, sanitation mesures, medical treatment by the people themselves.