Situación epidemiológica actual de la triquinosis en Chile. 1991-2000

Background: Human and animal trichinosis has been recorded in Chile since the late XIX century and is irregularly distributed along the country. From high rates of infection in the early 1900, the frequency of this parasitosis in man has progressively decreased. Aim: To describe and discuss the epid...

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Autores principales:	Schenone F,Hugo, Olea N,Andrea, Schenone C,Hugo, Contreras L,María del Carmen, Mercado P,Rubén, Sandoval S,Lea, Pavletic B,Carlos
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2002
Materias:	Parasitic diseases Parasitology Public health Trichinosis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872002000300006
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spelling	oai:scielo:S0034-988720020003000062002-07-24Situación epidemiológica actual de la triquinosis en Chile. 1991-2000Schenone F,HugoOlea N,AndreaSchenone C,HugoContreras L,María del CarmenMercado P,RubénSandoval S,LeaPavletic B,Carlos Parasitic diseases Parasitology Public health Trichinosis Background: Human and animal trichinosis has been recorded in Chile since the late XIX century and is irregularly distributed along the country. From high rates of infection in the early 1900, the frequency of this parasitosis in man has progressively decreased. Aim: To describe and discuss the epidemiological situation of trichinosis in Chile during the decade 1991 - 2000. Material and methods: Human infection was assessed using annual incidence and lethality reports provided by the Ministry of Health, periodic photostrichinoscopies in corpses of non selected individuals autopsied at the Medico Legal Service and periodic national serologic surveys. The advise of one of the authors in an epidemic that occurred in 1999 in the VIII Region was also used. Animal infection was assessed using the annual prevalence of infection in pigs slaughtered in abattoirs, furnished by the Ministry of Health. Results: A total of 631 clinical cases with 4 deaths (0.6%) was recorded. A decline in the incidence, from 0.7 x 100,000 in 1991 to 0.2 x 100,000 in 2000 was recorded. The higher frequency of the parasitosis was observed in the Metropolitan, VI, VIII and X regions. Although human trichinosis has been observed in all seasons, its frequency increases in close relation with the higher pork consumption in cold seasons (45.8% in winter and 37.5% in spring). There has been a decrease of infection rates in pigs from 0.17%o in 1991 to 0.04%o in 1998 - 2000. Conclusions: The incidence and prevalence of trichinosis shows a constant decline in Chile. Considering the geographical characteristics of Chile, it is possible that an undetermined number of pigs are home reared and butchered without veterinary control, constituting an important source of human trichinosis (Rev Méd Chile 2002; 130: 281-5info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.130 n.3 20022002-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872002000300006es10.4067/S0034-98872002000300006
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Parasitic diseases Parasitology Public health Trichinosis
spellingShingle	Parasitic diseases Parasitology Public health Trichinosis Schenone F,Hugo Olea N,Andrea Schenone C,Hugo Contreras L,María del Carmen Mercado P,Rubén Sandoval S,Lea Pavletic B,Carlos Situación epidemiológica actual de la triquinosis en Chile. 1991-2000
description	Background: Human and animal trichinosis has been recorded in Chile since the late XIX century and is irregularly distributed along the country. From high rates of infection in the early 1900, the frequency of this parasitosis in man has progressively decreased. Aim: To describe and discuss the epidemiological situation of trichinosis in Chile during the decade 1991 - 2000. Material and methods: Human infection was assessed using annual incidence and lethality reports provided by the Ministry of Health, periodic photostrichinoscopies in corpses of non selected individuals autopsied at the Medico Legal Service and periodic national serologic surveys. The advise of one of the authors in an epidemic that occurred in 1999 in the VIII Region was also used. Animal infection was assessed using the annual prevalence of infection in pigs slaughtered in abattoirs, furnished by the Ministry of Health. Results: A total of 631 clinical cases with 4 deaths (0.6%) was recorded. A decline in the incidence, from 0.7 x 100,000 in 1991 to 0.2 x 100,000 in 2000 was recorded. The higher frequency of the parasitosis was observed in the Metropolitan, VI, VIII and X regions. Although human trichinosis has been observed in all seasons, its frequency increases in close relation with the higher pork consumption in cold seasons (45.8% in winter and 37.5% in spring). There has been a decrease of infection rates in pigs from 0.17%o in 1991 to 0.04%o in 1998 - 2000. Conclusions: The incidence and prevalence of trichinosis shows a constant decline in Chile. Considering the geographical characteristics of Chile, it is possible that an undetermined number of pigs are home reared and butchered without veterinary control, constituting an important source of human trichinosis (Rev Méd Chile 2002; 130: 281-5
author	Schenone F,Hugo Olea N,Andrea Schenone C,Hugo Contreras L,María del Carmen Mercado P,Rubén Sandoval S,Lea Pavletic B,Carlos
author_facet	Schenone F,Hugo Olea N,Andrea Schenone C,Hugo Contreras L,María del Carmen Mercado P,Rubén Sandoval S,Lea Pavletic B,Carlos
author_sort	Schenone F,Hugo
title	Situación epidemiológica actual de la triquinosis en Chile. 1991-2000
title_short	Situación epidemiológica actual de la triquinosis en Chile. 1991-2000
title_full	Situación epidemiológica actual de la triquinosis en Chile. 1991-2000
title_fullStr	Situación epidemiológica actual de la triquinosis en Chile. 1991-2000
title_full_unstemmed	Situación epidemiológica actual de la triquinosis en Chile. 1991-2000
title_sort	situación epidemiológica actual de la triquinosis en chile. 1991-2000
publisher	Sociedad Médica de Santiago
publishDate	2002
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872002000300006
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Situación epidemiológica actual de la triquinosis en Chile. 1991-2000

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