[Paths to convergence of interests in depollution of the Guandu River in Rio de Janeiro, Brazil].

In January 2020, the population of Greater Metropolitan Rio de Janeiro, Brazil, suffered deterioration in the quality of the public water supply, caused by the presence of geosmin, which compromised the water treatment process at the Guandu Water Treatment Plant, the only water source in the region. The phenomenon results from lack of investment in sewage infrastructure in the Guandu River Basin, which previously affected only the predominantly low-income population. The article aims to identify different social actors' roles and actions, using the Systemic Integration methodology, to allow convergence of their interests for prioritizing and achieving depollution of the Guandu River.

Ancient Parasite Analysis and Zoonotic Potential of sp. in Two Related Sites from Pernambuco, Brazil.

Pathoecology studies the environmental and cultural factors that contribute to the maintenance of infections or diseases in populations. Concerning parasites, it requires the evaluation of these factors based on the presence and life cycle of these organisms. For this reason, it is possible to apply this concept in the context of ancient populations in order to understand the parasite-host dynamic or even the health consequences faced by the members of the populations.