In 544 pregnant women followed across Rio de Janeiro state, adverse maternal outcomes hit 18% of confirmed Oropouche infections versus 7% without, with fetal loss and haemorrhage risks roughly tripled.
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A nationwide Brazilian cohort of 4.1 million children found that babies exposed to Zika in the womb but without congenital Zika syndrome had the same pneumonia-hospitalisation risk as unexposed children.
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A Manaus trial found chloroquine alone let 27% of Plasmodium vivax patients relapse by day 42; dihydroartemisinin-piperaquine cut that to 2.4%. Paired with primaquine, both drugs did well.
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Across 166,390 tests during Brazil's outbreak, two TAK-003 doses were 73% effective against symptomatic dengue and 88% against hospitalisation, with no sign of waning.
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WHAT THE STUDY ACTUALLY SAYSTungiasis, on WHO's neglected-disease list since 2021 but never quantified, costs up to 379,645 healthy life-years a year — rising to 575,298 once its complications are counted.
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More than 410,000 probable cases so far in 2026, against 1.45 million for all of 2025. One state, Minas Gerais, accounts for roughly a sixth of the national case total on its own.
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WHAT THE STUDY ACTUALLY SAYSA national analysis of 2,985 haemorrhage deaths from 2015 to 2024 found no significant change over time — and Indigenous women dying at 2.87 times the rate of White women.
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WHAT THE STUDY ACTUALLY SAYSA Brazilian laboratory study found both a prototype strain and an emergent reassortant killed neural progenitors and collapsed cortical structure. This is a dish, not a pregnancy.
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ANALYSISA blinded comparison of 180 responses from a university telehealth centre in Minas Gerais found AI matched human specialists on medical adequacy and risk, and beat them on comprehensibility.
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ANALYSISAn analysis of 15 years of case data from Altamira, in the Xingu Basin, finds forest edge and local population size — not climate — explained where transmission returned.
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ANALYSISFine particulate exposure in seven Amazonian capitals was tied to about 5,472 circulatory and 2,621 respiratory deaths over six years. A separate analysis finds cardiac mortality rising with forest loss.
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ANALYSISA comparison of FDA, EMA and ANVISA decisions from 2020 to 2024 finds Brazilian approvals arriving about a year later. A second study clocks the wait for public-system financing in years, not months.
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EXPLAINERAnvisa's five new resolutions build a controlled supply chain from seed to shelf, including a regulatory sandbox for patient associations. Analysts say the framework's biggest gap is the one it did not close.
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WHAT THE STUDY ACTUALLY SAYSShared cell time raises transmission odds sharply — six months of it doubles them. But cell-level exposure explains only part of the genomic clustering, which undercuts contact tracing as a strategy.
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A WHO and Brazil special report released on the summit's Health Day says extreme heat kills over 540,000 people a year and that health facilities face 41% higher weather-damage risk than in 1990.
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THE HEAT MAPThe causes recorded do not look like a textbook heat event: nonspecific findings, nervous system disease and mental disorders led the excess, and deaths at home rose 64%.
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