Prevalence and incidence of canine visceral leishmaniasis and its clinical–immunological features in an endemic area of the Brazilian Amazon

Autor: Liliane A. Carneiro, Luciana V. Lima, Marliane B. Campos, Thiago Vasconcelos dos Santos, Patrícia K. Ramos, Márcia D. Laurenti, Fernando T. Silveira
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Veterinary Medicine and Science, Vol 9, Iss 6, Pp 2463-2474 (2023)
Druh dokumentu: article
ISSN: 2053-1095
DOI: 10.1002/vms3.1218
Popis: Abstract Background A cohort study for 2 years period analysed the prevalence, incidence and clinical–immunological features of canine Leishmania (L.) chagasi‐infection in 316 mongrel dogs in a visceral leishmaniasis‐endemic area in Pará State, Brazil. Objective/Methods Diagnosis of infection was performed by the indirect fluorescent antibody test (IFAT‐IgG), the leishmanin skin test (LST) and a parasite search (from the popliteal lymph node aspiration) at the beginning of the study and at 6, 12 and 24 months intervals. Results IFAT/LST revealed three immune profiles of infection: (I) IFAT(+)/LST(−) (81), (II) IFAT(−)/LST(+) (17) and (III) IFAT(+)/LST(+) (13). Prevalence of profiles I, II and III were 25.6, 5.4 and 4.1%, and an overall prevalence 35.1%. Incidence of profiles I, II and III were 5.4, 0.3 and 0.0%, and an overall incidence 5.7% dogs per month. Incidence at the age ranges
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