Toxoplasma gondii infection causes structural changes in the jejunum of rats infected with different inoculum doses.

Aim: To evaluate the mucosal tunic and submucosal plexus of the jejunum of rats infected with different inoculum doses of Toxoplasma gondii.

Main Methods: Rats were infected with different inoculum doses (50, 500, 1000 and 5000 oocysts) of the T. gondii for 30days, while a control group (CG) received saline solution.

Presence of anti-Leishmania (Viannia) braziliensis antibodies in blood donors in the West-Central region of the State of Paraná, Brazil.

Introduction: Serological screening in blood banks does not include all transmittable diseases. American cutaneous leishmaniasis (ACL) has a high detection rate in the municipalities of the State of Paraná.

Methods: This study analyzed the presence of anti- Leishmania braziliensisantibodies in 176 blood donors who live in these endemic areas.