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  • Title: [Exposure to Leptospira in stray dogs in the city of Cali].
    Author: Rodríguez AL, Ferro BE, Varona MX, Santafé M.
    Journal: Biomedica; 2004 Sep; 24(3):291-5. PubMed ID: 15551881.
    Abstract:
    In Colombia, little information is available concerning the epidemiology of leptospirosis in urban environments. Furthermore, the role of dogs in the transmission cycle of leptospirosis in the urban setting is unclear. To explore the potential role of canines in the transmission of leptospirosis in Cali, a serological study was conducted with 197 serum samples collected from stray dogs during 2001 and 2003. Serum specimens were screened with the Microscopic Agglutination Test (MAT) and 7 serovars--Icterohaemorrhagiae, Canicola, Gryppotyphosa, Hardjo strain Hardjobovis, Pomona, Hardjo strain Hardjoprajitno and Bratislava. All serovars were provided by the Instituto Colombiano Agropecuario (ICA), Tuluá, Colombia. The MAT was considered positive when 50% or more leptospiras were agglutinated with one or more serovars in a serum dilution of 1:100. At least one serovar showed evidence of infection in 41.1% of the dogs. The most prevalent serovar was Icterohaemorrhagiae, found in 55.6% of the seropositive dogs. 48.1% were co-agglutinations. No reactions against the serovars Pomona, Hardjo strain Hardjoprajitno and Bratislava were observed. These findings suggested that stray dogs are potential reservoirs of Leptospira in Cali and underscored the need to study the epidemiology of this disease in Colombia.
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