Museum specimens represent a valuable resource for helminthological research. We examined formalin-fixed livers preserved for periods in excess of 50 years from naturally infected pigs in archival material from the Helminthological Collection of the Oswaldo Cruz Institute (CHIOC), Oswaldo Cruz Foundation (FIOCRUZ). Microscopic examination revealed evidence of parasites in unilocular cystic structures containing a bladder worm vesicle lined with a thin laminated membrane. The inner germinal layer contained parasite debris and a proteinaceous hydatid-like fluid. The hepatic parenchyma showed a dense inflammatory infiltrate near the cyst, thick-walled arterial vessels, and occasionally necrosis. The adjacent hepatic parenchyma showed inter- and intra-lobular thin fibrosis, inflammatory cell infiltration and occasionally necrosis. Other histo-pathological sections showed a thick laminated wa...

The main objective of the article is to reflect on the communication of public health policies about epidemics in Argentina from the Health Communication perspective. The methodological design was based on the systematization and classification of social research findings about AIDS, Cholera, H1N1 fever and Dengue. The purpose is to develop the outlines of a research and communication framework designed to strengthen the skills to cope with the challenge of public communication on epidemics in the contemporary society.