Multiple sources of pollutants reaching the Doce River in southeastern Brazil basin and their impact on benthic Diptera (Chironomidae) biology.

The collapse of the Fundão Dam, in the Rio Doce Basin (DRB), released tons of metal-rich waste that spread across the basin and reached the sea. Chemicals present in tailings and other sources located along the DRB can influence benthic organisms such as Chironomidae (Diptera). This study aimed to investigate the consequences of subchronic sediment exposure (sampled in the 2019 dry season) from different segments (six sites) of the DRB on Chironomus sancticaroli larvae.

A Retrospective Cross-Sectional Analysis of Viral SARI in Pregnant Women in Southern Brazil.

Pregnant women (PW) are at a higher risk of diseases and hospitalization from viral respiratory infections, particularly influenza and SARS-CoV-2, due to cardiopulmonary and immunological changes. This study assessed the impact of viral respiratory infections on PW hospitalized with severe acute respiratory infection (SARI) prior to the COVID-19 pandemic. It is a cross-sectional study with 42 PW and 85 non-pregnant women (NPW) admitted with SARI to two tertiary hospitals between January 2015 and December 2019.