Dogs contract Leishmania infantum from sand flies. Once the dog has it, the parasite can be transmitted to humans, especially young children. Currently Leishmania is found in Latin America, Europe, and Asia. However, as other diseases have spread, in the future this may also be a risk in other countries.
Leishmania is a multi-systemic disease that is difficult to treat. However, the good news is that Laura Willen, of Charles University, Czech Republic, and colleagues prepared an immunochromatographic test (ICT) to rapidly screen dogs for the presence of P. perniciosus, a sand fly saliva protein.
According to a report, “The typical history reported by owners of dogs with clinical disease due to L infantum includes the appearance of skin lesions, ocular abnormalities, or epistaxis. These are frequently accompanied by weight loss, exercise intolerance, and lethargy. The main physical examination findings are dermal lesions in 80%–90% of the dogs, lymphadenomegaly in 62%–90%, ocular disease in 16%–81%, splenomegaly in 10%–53%, and abnormal nail growth (onychogryphosis) in 20%–31%. Other clinical findings may include polyuria and polydipsia due to kidney disease, vomiting, colitis, melena, and lameness due to joint, muscle, or bone lesions. The sole presenting signs of disease could be epistaxis, ocular abnormalities, or manifestations of kidney disease without dermal abnormalities.”