3. Results
3.1. Effect of vaccination on blood counts
One group of dogs was immunized with two doses of DNA
vaccine, and two weeks later were infected by T. cruzi, while
another group was infected first and treated with the DNA vaccine.
On the day on infection, all blood parameters were within the
normal range of values [37] for the three groups (Table 1). Control
dogs developed anemia, lymphopenia and mocytosis after 28
days of infection with T. cruzi, and anemia persisted up to day 42