Infrequency of asymptomatic malaria in an endemic area in Amazonas, Brazil
A malaria survey was conducted in an area of high transmission (Costa Marques, Rondonia, Brazil) to determine the prevalence of asymptomatic parasitemia and its clinical significance. Most of the people surveyed were immigrants who had lived in the endemic area < 5 years. The people had easy acce...
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ftdoajarticles:oai:doaj.org/article:afe22485759943e395fefdaf10ad0744 2023-05-15T15:17:18+02:00 Infrequency of asymptomatic malaria in an endemic area in Amazonas, Brazil Aluizio Prata Margarita Urdaneta Patrick B. McGreevy Mauro Shugiro Tada 1988-06-01T00:00:00Z https://doaj.org/article/afe22485759943e395fefdaf10ad0744 EN eng Sociedade Brasileira de Medicina Tropical (SBMT) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821988000200003 https://doaj.org/toc/0037-8682 https://doaj.org/toc/1678-9849 0037-8682 1678-9849 https://doaj.org/article/afe22485759943e395fefdaf10ad0744 Revista da Sociedade Brasileira de Medicina Tropical, Vol 21, Iss 2, Pp 51-54 (1988) Malária Malária assintomática Plasmodium falciparum Plasmodium vivax Brasil Malaria Asymptomatic malaria Brazil Arctic medicine. Tropical medicine RC955-962 article 1988 ftdoajarticles 2022-12-31T03:00:11Z A malaria survey was conducted in an area of high transmission (Costa Marques, Rondonia, Brazil) to determine the prevalence of asymptomatic parasitemia and its clinical significance. Most of the people surveyed were immigrants who had lived in the endemic area < 5 years. The people had easy access to free diagnostic and treatment services at the Malaria Clinic in the town of Costa Marques. The prevalence of plasmodial parasitemia in 344 people was 22%. There were 36 individuals with asymptomatic infections among the 77 parasitemic patients. During the two days following the initial examination, 19 ofthe 36 individuals: with asymptomatic infections developed malaria. Among the 17 patients who remained asymptomatic for > 2 days, 4 had only gametocytes, 1 had taken inadequate anti-malarial treatment, 3 were under treatment and 2 moved. Six asymptomatic patients denied the use of anti-malarial drugs and they developed malaria 3-6 days after the initial parasitological diagnosis. The final patient remained asymptomatic during the 7 day observation period. He had a history of > 40 malaria attacks and denied the use of antimalarial treatment. With the exception of the latter all of the other asymptomatic patients, were either in the incubation period or had been treated It is concluded that asymptomatic malaria is rare in the Costa Marques area and that it is necessary to treat all individuals with plasmodial parasitemia. Em uma área de alta transmissão de malária (Costa Marques, Rondônia) foi feito um estudo para determinar a prevalência de parasitemia assintomática e seu significado clínico. A maioria dos habitantes estudados era imigrante que vivia na região há menos de 5 anos. Em Costa Marques há facilidades para o diagnóstico e pronto tratamento da malária. Em 344 pessoas examinadas havia 77 (22%) com parasitemia para hematozoários. Entre estes, 36 não tinham sintomatologia de malária. Após dois dias, 19 dos 36 desenvolveram sintomatologia. Dos 17 que continuavam assintomáticos, 4 tinham somente ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Alta |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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English |
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Malária Malária assintomática Plasmodium falciparum Plasmodium vivax Brasil Malaria Asymptomatic malaria Brazil Arctic medicine. Tropical medicine RC955-962 |
spellingShingle |
Malária Malária assintomática Plasmodium falciparum Plasmodium vivax Brasil Malaria Asymptomatic malaria Brazil Arctic medicine. Tropical medicine RC955-962 Aluizio Prata Margarita Urdaneta Patrick B. McGreevy Mauro Shugiro Tada Infrequency of asymptomatic malaria in an endemic area in Amazonas, Brazil |
topic_facet |
Malária Malária assintomática Plasmodium falciparum Plasmodium vivax Brasil Malaria Asymptomatic malaria Brazil Arctic medicine. Tropical medicine RC955-962 |
description |
A malaria survey was conducted in an area of high transmission (Costa Marques, Rondonia, Brazil) to determine the prevalence of asymptomatic parasitemia and its clinical significance. Most of the people surveyed were immigrants who had lived in the endemic area < 5 years. The people had easy access to free diagnostic and treatment services at the Malaria Clinic in the town of Costa Marques. The prevalence of plasmodial parasitemia in 344 people was 22%. There were 36 individuals with asymptomatic infections among the 77 parasitemic patients. During the two days following the initial examination, 19 ofthe 36 individuals: with asymptomatic infections developed malaria. Among the 17 patients who remained asymptomatic for > 2 days, 4 had only gametocytes, 1 had taken inadequate anti-malarial treatment, 3 were under treatment and 2 moved. Six asymptomatic patients denied the use of anti-malarial drugs and they developed malaria 3-6 days after the initial parasitological diagnosis. The final patient remained asymptomatic during the 7 day observation period. He had a history of > 40 malaria attacks and denied the use of antimalarial treatment. With the exception of the latter all of the other asymptomatic patients, were either in the incubation period or had been treated It is concluded that asymptomatic malaria is rare in the Costa Marques area and that it is necessary to treat all individuals with plasmodial parasitemia. Em uma área de alta transmissão de malária (Costa Marques, Rondônia) foi feito um estudo para determinar a prevalência de parasitemia assintomática e seu significado clínico. A maioria dos habitantes estudados era imigrante que vivia na região há menos de 5 anos. Em Costa Marques há facilidades para o diagnóstico e pronto tratamento da malária. Em 344 pessoas examinadas havia 77 (22%) com parasitemia para hematozoários. Entre estes, 36 não tinham sintomatologia de malária. Após dois dias, 19 dos 36 desenvolveram sintomatologia. Dos 17 que continuavam assintomáticos, 4 tinham somente ... |
format |
Article in Journal/Newspaper |
author |
Aluizio Prata Margarita Urdaneta Patrick B. McGreevy Mauro Shugiro Tada |
author_facet |
Aluizio Prata Margarita Urdaneta Patrick B. McGreevy Mauro Shugiro Tada |
author_sort |
Aluizio Prata |
title |
Infrequency of asymptomatic malaria in an endemic area in Amazonas, Brazil |
title_short |
Infrequency of asymptomatic malaria in an endemic area in Amazonas, Brazil |
title_full |
Infrequency of asymptomatic malaria in an endemic area in Amazonas, Brazil |
title_fullStr |
Infrequency of asymptomatic malaria in an endemic area in Amazonas, Brazil |
title_full_unstemmed |
Infrequency of asymptomatic malaria in an endemic area in Amazonas, Brazil |
title_sort |
infrequency of asymptomatic malaria in an endemic area in amazonas, brazil |
publisher |
Sociedade Brasileira de Medicina Tropical (SBMT) |
publishDate |
1988 |
url |
https://doaj.org/article/afe22485759943e395fefdaf10ad0744 |
geographic |
Arctic Alta |
geographic_facet |
Arctic Alta |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista da Sociedade Brasileira de Medicina Tropical, Vol 21, Iss 2, Pp 51-54 (1988) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821988000200003 https://doaj.org/toc/0037-8682 https://doaj.org/toc/1678-9849 0037-8682 1678-9849 https://doaj.org/article/afe22485759943e395fefdaf10ad0744 |
_version_ |
1766347556606967808 |