Evidence of hidden leprosy in a supposedly low endemic area of Brazil
Mem. Inst. Oswaldo Cruz
; 112(12): 822-828, Dec. 2017. tab, graf
Article
em En
| LILACS
| ID: biblio-894859
Biblioteca responsável:
BR1.1
ABSTRACT
OBJECTIVES Show that hidden endemic leprosy exists in a municipality of inner São Paulo state (Brazil) with active surveillance actions based on clinical and immunological evaluations. METHODS The study sample was composed by people randomly selected by a dermatologist during medical care in the public emergency department and by active surveillance carried out during two days at a mobile clinic. All subjects received a dermato-neurological examination and blood sampling to determine anti-PGL-I antibody titers by enzyme-linked immunosorbent assay (ELISA). RESULTS From July to December 2015, 24 new cases of leprosy were diagnosed; all were classified as multibacillary (MB) leprosy, one with severe Lucio's phenomenon. Seventeen (75%) were found with grade-1 or 2 disability at the moment of diagnosis. Anti-PGL-I titer was positive in 31/133 (23.3%) individuals, only 6/24 (25%) were positive in newly diagnosed leprosy cases. CONCLUSIONS During the last ten years before this study, the average new case detection rate (NCDR) in this town was 2.62/100,000 population. After our work, the NCDR was raised to 42.8/100,000. These results indicate a very high number of hidden leprosy cases in this supposedly low endemic area of Brazil.
Palavras-chave
Texto completo:
1
Base de dados:
LILACS
Assunto principal:
Ensaio de Imunoadsorção Enzimática
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Hanseníase
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Anticorpos Antibacterianos
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Mycobacterium leprae
Tipo de estudo:
Diagnostic_studies
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Prognostic_studies
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Screening_studies
Limite:
Adolescent
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Adult
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Aged
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Female
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Humans
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Male
País/Região como assunto:
America do sul
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Brasil
Idioma:
En
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
MEDICINA TROPICAL
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PARASITOLOGIA
Ano de publicação:
2017
Tipo de documento:
Article
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Project document
País de afiliação:
Brasil