[Prevalence of canine filariasis by Dirofilaria immitis and Dipetalonema reconditum in Maceió, Alagoas State, Brazil].

A survey on the prevalence of Dirofilaria immitis and Dipetalonema reconditum was conducted in 1,519 dogs from Maceió and two coastal areas in the State of Alagoas, Northeast Brazil, from 1995 to 1999, by testing for microfilariae in blood. All blood samples were from exclusively domiciled dogs with a known history, showing that the infections were autochthonous, confirming transmission of canine filariasis in these areas. In Greater Metropolitan Maceió, 15 (1.3%) microfilaremic dogs were detected with D. immitis and 15 (1,3%) with D. reconditum. In the southern coastal area there was an estimated prevalence of 12.7% for D. immitis. D. immitis and D. reconditum microfilaria were 298.1 micrometer and 249.2 micrometer long and 7.3 micrometer and 4.4 micrometer wide, respectively. A Witness immunotest that detects D. immitis antigen was used to confirm parasitological results and reveal occult dirofilariasis cases. Of the total 6,579 females examined, 8 (0.1%) Culex quinquefasciatus were observed to be naturally infected with D. immitis larvae. These results proved dirofilariasis transmission in Maceió and demonstrated D. reconditum in the same geographic area.
AuthorsA C Brito, M C Vila-Nova, D A Martins Rocha, L Gomes Costa, W A Pinheiro de Almeida, L da Silva Viana, R Ramalho Lopes Jr, G Fontes, E M da Rocha, L Regis
JournalCadernos de saúde pública (Cad Saude Publica) 2001 Nov-Dec Vol. 17 Issue 6 Pg. 1497-504 ISSN: 0102-311X [Print] Brazil
Vernacular TitlePrevalência da filariose canina causada por Dirofilaria immitis e Dipetalonema reconditum em Maceió, Alagoas, Brasil.
PMID11784911 (Publication Type: English Abstract, Journal Article)
Chemical References
  • Antigens, Helminth
  • Animals
  • Antigens, Helminth (blood)
  • Brazil (epidemiology)
  • Dipetalonema (isolation & purification)
  • Dipetalonema Infections (epidemiology, parasitology, veterinary)
  • Dirofilaria immitis (isolation & purification)
  • Dirofilariasis (epidemiology, parasitology)
  • Dog Diseases (epidemiology, parasitology)
  • Dogs
  • Female
  • Male
  • Prevalence

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