Vulnerabilidade à Malaria no município de Santa Isabel do Rio Negro, Amazonas, Brasil. / Vulnerability the malaria in municipio of Santa Isabel of Rio Negro, Amazonas, Brazil.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The goal of this survey was to characterize vulnerability to malaria in the urban area of Santa Isabel do Rio Negro, a small city in Amazon, Brazil. This town has 4,200 inhabitants and is located in the Rio Negro basin. We carried out: i) the description of the secular and spatial distribution of the malaria cases which occurred during the years 2003 the 2006 (n = 3.194 cases), ii) a study series of malaria cases which occurred in the city during the years of 2004 to 2006 (n = 59 cases), iii) a cross-sectional study evaluating demographic and epidemiological data (n= 136 families), iv) the description of an epidemic of malaria which occurred in 2007 (n = 222), v) identification of the water collections in the urban and agricultural nearby areas, vi) capture of anopheline mosquitoes. The distribution of the 3.194 cases showed an increase in the incidence of malaria in the Yanomâmi reserve. There was an increase in number of malaria cases in the city urban area in 2003. The 59 cases of malaria involved adult men, farm workers, who lived worked next to the roads. The visited residences were complete, with gaps between walls and ceilings. 66,2% of the family leaders did not have any knowledge on malaria prevention; 8,8% went sporadically to the Yanomâmi reserve. The 2007 epidemic in the city represented cases from the quarters of Santa Ana, São Judas Tadeu and São José do Operário and from roads that connect these quarters to the agricultural area. Thirty-three water collections were identified, twenty-two of which were located in the outskirts of the city, the majority of them had Anopheles darlingi larvae. The capture of Anofeline mosquitoes was carried throughout the dry season in the urban area of the city and all traps were positive for A. darlingi. The index of manhour capture (IMHC) in the urban area of Santa Isabel do Rio Negro was higher in the Dom Walter subarea. The index of man-hour capture (IMHC) in the farming area was higher in the Estrada do Aeroporto (road to the airport). The present work suggests the urban area of Santa Isabel is a region of unstable, epidemic characteristics for malaria, and it infection transmission is likely to be perpetuated.

ASSUNTO(S)

malaria/epidemiology doencas infecciosas e parasitarias case studies estudo sobre vulnerabilidade estudo de casos malária/epidemiologia vulnerability study

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