Leishmaniasis are
diseases of a zoonotic nature with importance in public health, which
has as a protozoa n etiological agent of the genus Leishmania spp It has a heteroxhenic
biological cycle, with a phlebotomin e vector and among the hosts stands out the dog as
the main reservoir, but it can affect wild mammals and man. In Brazil there is a description
of the occurrence of tegumentary leishmaniosis and visceral leishmaniosis. The
tegumentary form presents high casuistics in humans in the northern region. The present
work evaluated 152 hematological samples obtained by peripheral venopuncture of dogs
serororreagents to the DPP in the municipalities of Manaus/AM and Presidente
Figueiredo/AM, endemic regions for t egumentary leishmaniosis. Erythrogram and
leukogram were performed using a traditional manual technique and the differential
leukocyte count was performed under optical microscopy, in immersion lens (100x).
Of the 152 samples 32 were reagents for Leishmania spp. However, blood count,
erythrocytes values, globular volume, leukocytes, platelets and total plasma protein
showed no statistical difference between reactive and non reactive animals (p>0.05).
However, dogs with leishmania spp may remain asymptomatic not presenting suggestive
hematological alterations, since the most frequent clinical manifestation is
dermatological. It is concluded that PPD is useful tool for screening leishmania sp p.
although it does not present specificit y, false positives may occur. The hematological
carcaterization of the samples studied did not present diagnostic indication. Thus, further
studies are needed to investigate leishmania spp species involved in infections in
domestic dogs in the Amazon r egions and their relationship with cases of human
tegumentary leishmaniasis.
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