Leishmaniose tegumentar canina no município de Balneário Camboriú, Estado de Santa Catarina

Abstract

RESUMO ABSTRACT Introduction:The increase in American tegumentary leishmaniasis (ATL) cases in 2005 was due to an outbreak that occurred in the towns of Itapema and Balneário Camboriú. This study aimed to determine the possible presence of infection by Leishmania sp in domestic dogs living in an endemic focus of ATL in the town of Balneário Camboriú and verify the existence of a correlation between the humoral and cellular immune responses, the presence of suggestive lesions and positivity in direct parasitological exams. Methods: A total of 275 dogs were evaluated, examined according to clinic aspects, the development of delayed hypersensitivity to Immunoleish ® antigens and serological responses to the indirect immunofluorescence reaction and immunoenzymatic assay. Results: Seven dogs presented suspect lesions, but Leishmania was not detected using the direct parasitological method. The serological result was 5.8% positivity using the IIFR technique, 6.2% by ELISA and 1.8% using the intradermal test. The total number of dogs positive for ATL using the serological exams and/or intradermal test was 24, indicating prevalence of 8.7% for ATL. Conclusions: Further studies are required to evaluate the participation of dogs in the epidemiological chain of ATL in Balneário Camboriú.

Diagnosis and epidemiology of canine leishmaniasis in southeastern Bahia, Brazil

“…Although IFAs are widely employed for their convenience and low cost, their use is controversial owing to low levels of detectable serum antibodies and the possibility of cross-reactions (Antunes Uchôa et al, 2001). Serological diagnosis results vary depending on the stage of infection (Heusser Júnior et al, 2010). According to Antunes Uchôa et al (2001), higher levels of specific antibodies are produced when multiple cutaneous lesions are present in the later stages of infection, and in cases with simple skin lesions and lymphatic system involvement.…”

Infecção por Leishmania sp. em cães de Florianópolis, Santa Catarina, Brasil

“…antibodies, as observed in a previous study (ZANETTE et al, 2008b). However, the possibility of cross-reaction with antibodies against etiological agents of cutaneous leishmaniasis, such as L. braziliensis and L. amazonensis, cannot be ruled out, because there are reports of indigenous cases of the disease in both humans and dogs living in the state of Santa Catarina (GRISARD et al, 2000;HEUSSER-JÚNIOR et al, 2010).…”

“…The southern region of Brazil was considered free from visceral leishmaniasis until recently, when there were only reports of the disease in its cutaneous form, in both humans and animals (HEUSSER-JÚNIOR et al, 2010;ROSSETO et al, 2006). In 2007, two municipalities (Cruz Alta and Uruguaiana) in the state of Rio Grande do Sul (RS) had alochthonous cases of the disease (visceral form) in dogs (DALMOLIN et al, 2008;KRAUSPENHAR et al, 2007).…”

Rural area of the Brazilian Pantanal wetlands associated with the occurrence of anti-<i>Leishmania</i> spp. antibodies in dogs

“…This parasite is of medical and veterinary public health importance because it infects numerous mammal species, including humans, and is transmitted by the bite of female phlebotomine sand flies of the genus Phlebotomus in the old world and Lutzomyia in the new world. The leishmaniases may have different clinical manifestations such as American visceral leishmaniasis (AVL) and American cutaneous leishmaniasis (ACL) (ASHFORD, 2000;CHAPPUIS et al, 2007;HEUSSER JÚNIOR et al, 2010;BRASIL, 2016). In Brazil the cutaneous form of the disease is usually caused by Leishmania braziliensis and Leishmania amazonensis (BRASIL, 2016).…”