Objective.Trypanosoma cruzi, the causative agent of Chagas’ disease, is transmitted mainly by insect vectors, but congenital and transfusion-borne infections occasionally occur. The factors that are involved in transmission ...

Trypanosoma cruzi is the protozoan unicellular parasite that causes Chagas disease. It can be transmitted from infected mothers to their babies via the connatal route, thus being able to perpetuate even in the absence of ...

Chlamydia trachomatis (CT) is the most common agent of bacterial sexually transmitted infections, both in developed and developing countries. It clearly constitutes a major burden on public health. Screening programs and ...

HIV infection has a significant impact on the natural progression of liver disease caused by infection with hepatitis B virus (HBV), but its role in the molecular evolution of HBV is unknown. It is difficult to study the ...

Aguilera et al. have clearly confirmed the usefulness of looking for hepatitis D virus (HDV) in patients showing HBsAg reactivity in serum. However, Ponzetto et al. ,have accurately emphasized the fact that HDV infection ...

Herpes simplex virus type 1 is one of the most frequent causes of oral infection in humans, especially during early childhood. Several experimental models have been developed to study the pathogenesis of this virus but all ...

Little is known about long-lasting measles protective immunity when exposure to wild-type or vaccine measles virus precedes HIV infection. The results obtained suggest that measles immunity wanes and the lowest measles ...