Immunologic Protection against Canine Heartworm Infection.

Immunologic protection against canine heartworm infection.

This study was conducted to evaluate protective efficiency of three different protocols for vaccination in canine heartworm infection. To evaluate the three protocols of immunization, dogs were separately immunized with living larvae; 1) immunization with gamma-attenuated infective larvae, 2) with 50 micrograms/kg ivermectin-abbreviation, and 3) with chemical abbreviation plus Freund's complete...

Canine Heartworm Disease

Focus on Canine Heartworm Disease

The ingested microfilariae develop into the infective third-stage larvae (L3) after several molts. These L3 migrate to the mosquito head and mouthparts where they are deposited in hemolymph onto mammalian skin during subsequent blood meals. After the deposited L3 enter the host through the mosquito bite wound, they molt to fourth-stage larvae (L4). The L4 then migrate through the tissues toward...

Immunologic indicators of clinical progression during canine Leishmania infantum infection.

In both dogs and humans Leishmania infantum infection is more prevalent than disease, as infection often does not equate with clinical disease. Previous studies additively indicate that advanced clinical visceral leishmaniasis is characterized by increased production of anti-Leishmania antibodies, Leishmania-specific lymphoproliferative unresponsiveness, and decreased production of gamma interf...

Geographic distribution of canine heartworm (Dirofilaria immitis) infection in stray dogs of eastern Romania.

A survey was conducted in the eastern part of Romania to assess the prevalence and geographical distribution of Dirofilaria immitis in dogs. Plasma samples were collected from 458 stray dogs hosted in shelters in 8 counties and tested serologically for the presence of heartworm. In addition, 45 blood samples from dogs of a shelter in Galati city were examined by the modified Knott and multiplex...