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Trypanosoma cruzi strains from triatomine collected in Bahia and Rio Grande do Sul, Brazil.

Ribeiro AR, Mendonça VJ, Alves RT, Martinez I, Araújo RF, Mello F, da Rosa JA - Rev Saude Publica (2014)

Bottom Line: Out of the specimens examined, T. cruzi was isolated from 28 triatomine divided into four different species: T. melanocephala (one), T. lenti (one), T. rubrovaria (16) and T. sordida (10).Their index of natural infection by T. cruzi was 6.4%.The maintenance of those T. cruzi strains in laboratory is intended to promote studies that facilitate the understanding of the parasite-vector-host relationship.

View Article: PubMed Central - PubMed

Affiliation: Departamento de Parasitologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brasil.

ABSTRACT

Objective: Collection of triatomines in domestic, peridomestic and sylvatic environments in states of Bahia and Rio Grande do Sul, Northeastern and Southern Brazil respectively, and isolation of Trypanosoma cruzi strains.

Methods: First, the captured triatomines were identified using insect identification keys, then their intestinal content was examined by abdominal compression, and the samples containing trypanosomatid forms were inoculated in LIT medium and Swiss mice.

Results: Six triatomine species were collected in cities in Bahia, namely Panstrongylus geniculatus (01), Triatoma melanocephala (11), T. lenti (94), T. pseudomaculata (02), T. sherlocki (26) and T. sordida (460), and two in cities in Rio Grande do Sul, namely T. circummaculata (11) and T. rubrovaria (115). Out of the specimens examined, T. cruzi was isolated from 28 triatomine divided into four different species: T. melanocephala (one), T. lenti (one), T. rubrovaria (16) and T. sordida (10). Their index of natural infection by T. cruzi was 6.4%.

Conclusions: The isolation of T. cruzi strains from triatomines found in domestic and peridomestic areas shows the potential risk of transmission of Chagas disease in the studied cities. The maintenance of those T. cruzi strains in laboratory is intended to promote studies that facilitate the understanding of the parasite-vector-host relationship.

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Cities in Bahia and Rio Grande do Sul where triatomines were collected,2002-2009.
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f01: Cities in Bahia and Rio Grande do Sul where triatomines were collected,2002-2009.

Mentions: In Rio Grande do Sul, triatomines were collected in sylvatic environments in fourteensites in six cities (Figure) in the periodbetween 2002 and 2003. In the state of Bahia, triatomines were captured in sylvatic,peridomestic and domestic areas in nine sites of five cities in 2003, 2006, 2008 and2009 (Table 1). The Bahia and Rio Grande doSul State Departments of Health cooperated in the collection activities. The citieswere chosen according to the report against triatomine by the health departments ofBahia and Rio Grande do Sul.


Trypanosoma cruzi strains from triatomine collected in Bahia and Rio Grande do Sul, Brazil.

Ribeiro AR, Mendonça VJ, Alves RT, Martinez I, Araújo RF, Mello F, da Rosa JA - Rev Saude Publica (2014)

Cities in Bahia and Rio Grande do Sul where triatomines were collected,2002-2009.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4206147&req=5

f01: Cities in Bahia and Rio Grande do Sul where triatomines were collected,2002-2009.
Mentions: In Rio Grande do Sul, triatomines were collected in sylvatic environments in fourteensites in six cities (Figure) in the periodbetween 2002 and 2003. In the state of Bahia, triatomines were captured in sylvatic,peridomestic and domestic areas in nine sites of five cities in 2003, 2006, 2008 and2009 (Table 1). The Bahia and Rio Grande doSul State Departments of Health cooperated in the collection activities. The citieswere chosen according to the report against triatomine by the health departments ofBahia and Rio Grande do Sul.

Bottom Line: Out of the specimens examined, T. cruzi was isolated from 28 triatomine divided into four different species: T. melanocephala (one), T. lenti (one), T. rubrovaria (16) and T. sordida (10).Their index of natural infection by T. cruzi was 6.4%.The maintenance of those T. cruzi strains in laboratory is intended to promote studies that facilitate the understanding of the parasite-vector-host relationship.

View Article: PubMed Central - PubMed

Affiliation: Departamento de Parasitologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brasil.

ABSTRACT

Objective: Collection of triatomines in domestic, peridomestic and sylvatic environments in states of Bahia and Rio Grande do Sul, Northeastern and Southern Brazil respectively, and isolation of Trypanosoma cruzi strains.

Methods: First, the captured triatomines were identified using insect identification keys, then their intestinal content was examined by abdominal compression, and the samples containing trypanosomatid forms were inoculated in LIT medium and Swiss mice.

Results: Six triatomine species were collected in cities in Bahia, namely Panstrongylus geniculatus (01), Triatoma melanocephala (11), T. lenti (94), T. pseudomaculata (02), T. sherlocki (26) and T. sordida (460), and two in cities in Rio Grande do Sul, namely T. circummaculata (11) and T. rubrovaria (115). Out of the specimens examined, T. cruzi was isolated from 28 triatomine divided into four different species: T. melanocephala (one), T. lenti (one), T. rubrovaria (16) and T. sordida (10). Their index of natural infection by T. cruzi was 6.4%.

Conclusions: The isolation of T. cruzi strains from triatomines found in domestic and peridomestic areas shows the potential risk of transmission of Chagas disease in the studied cities. The maintenance of those T. cruzi strains in laboratory is intended to promote studies that facilitate the understanding of the parasite-vector-host relationship.

Show MeSH
Related in: MedlinePlus