Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas)
A cross-sectional survey conducted among evening students was used to determine the prevalence of Wuchereria bancrofti infection in Maceió, capital of the State of Alagoas, northeast Brazil. A single thick-blood smear was used, being collected between 10 p.m. and 12 a.m. From a total of 29,551 stude...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
1998-01-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761998000600001 |
| _version_ | 1797757300271742976 |
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| author | Fontes Gilberto Rocha Eliana MM Brito Ana C Antunes Carlos Mauricio F |
| author_facet | Fontes Gilberto Rocha Eliana MM Brito Ana C Antunes Carlos Mauricio F |
| author_sort | Fontes Gilberto |
| collection | DOAJ |
| description | A cross-sectional survey conducted among evening students was used to determine the prevalence of Wuchereria bancrofti infection in Maceió, capital of the State of Alagoas, northeast Brazil. A single thick-blood smear was used, being collected between 10 p.m. and 12 a.m. From a total of 29,551 students enrolled at evening elementary schools in the 33 city sectors, 16,569 (56.4%) were random selected for inclusion in the study. From those, 10,857 (65.5%) were interviewed and examined and 73 (0.7%) were found to have microfilaraemia. Autochthonous W. bancrofti carriers live in 10 of the 33 city sectors, suggesting a focal distribution. Moreover, 84% of infections were diagnosed among 29% of all students examined, inhabiting three contiguous sectors at the city central area, presenting infection rates up to 5.3%. Students living in city sectors with prevalence of microfilariae carriers greater than 1% were found to have a higher risk for infection when compared to students from the rest of the town [Relative Odds (RO) 12.8, 95% CI 6.7 - 25.1]. Eleven positive individuals from non endemic areas were living in Maceió for more than 10 years; time of residence in the area was a major risk factor for infection among students not born in the region (p<0.01). Regarding sex, male students presented a higher proportion of positive (RO 1.7, 95% CI 1.1 - 2.9). |
| first_indexed | 2024-03-12T18:14:09Z |
| format | Article |
| id | doaj.art-3016383f54e0438db6d558e4263008bb |
| institution | Directory Open Access Journal |
| issn | 0074-0276 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T18:14:09Z |
| publishDate | 1998-01-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-3016383f54e0438db6d558e4263008bb2023-08-02T09:12:38ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80601998-01-01936705710Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas)Fontes GilbertoRocha Eliana MMBrito Ana CAntunes Carlos Mauricio FA cross-sectional survey conducted among evening students was used to determine the prevalence of Wuchereria bancrofti infection in Maceió, capital of the State of Alagoas, northeast Brazil. A single thick-blood smear was used, being collected between 10 p.m. and 12 a.m. From a total of 29,551 students enrolled at evening elementary schools in the 33 city sectors, 16,569 (56.4%) were random selected for inclusion in the study. From those, 10,857 (65.5%) were interviewed and examined and 73 (0.7%) were found to have microfilaraemia. Autochthonous W. bancrofti carriers live in 10 of the 33 city sectors, suggesting a focal distribution. Moreover, 84% of infections were diagnosed among 29% of all students examined, inhabiting three contiguous sectors at the city central area, presenting infection rates up to 5.3%. Students living in city sectors with prevalence of microfilariae carriers greater than 1% were found to have a higher risk for infection when compared to students from the rest of the town [Relative Odds (RO) 12.8, 95% CI 6.7 - 25.1]. Eleven positive individuals from non endemic areas were living in Maceió for more than 10 years; time of residence in the area was a major risk factor for infection among students not born in the region (p<0.01). Regarding sex, male students presented a higher proportion of positive (RO 1.7, 95% CI 1.1 - 2.9).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761998000600001Wuchereria bancroftilymphatic filariasisepidemiology |
| spellingShingle | Fontes Gilberto Rocha Eliana MM Brito Ana C Antunes Carlos Mauricio F Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas) Memorias do Instituto Oswaldo Cruz Wuchereria bancrofti lymphatic filariasis epidemiology |
| title | Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas) |
| title_full | Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas) |
| title_fullStr | Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas) |
| title_full_unstemmed | Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas) |
| title_short | Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas) |
| title_sort | lymphatic filariasis in brazilian urban area maceio alagoas |
| topic | Wuchereria bancrofti lymphatic filariasis epidemiology |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761998000600001 |
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