Bogotá’s strictest COVID restrictions delivered the clearest air-quality gains

	COVID-19
	The latest COVID-19 news from News Medical

	Bogotá’s strictest COVID restrictions delivered the clearest air-quality gains A natural quasi-experiment in Suba, Bogotá, found that more stringent COVID-19 mobility restrictions were associated with larger reductions in PM₁₀ and PM₂.₅ air pollution. The findings suggest targeted traffic and emissions controls could improve urban air quality, although ozone responses were more complex, and the results may not generalize beyond this high-traffic district.

	US adults are taking more supplements as multivitamins lose ground A 25-year NHANES analysis of 63,442 US adults found that reported dietary supplement use rose from 51% to 60%, with the largest increases among adults aged 65 years and older. Use shifted away from multivitamin-multimineral products and toward vitamins, minerals, botanicals, and nonvitamin nonmineral supplements marketed for immune, anti-inflammatory, gut, skin, and joint health.

			New diagnostic tools aim to bridge long Covid knowledge gap Five years after the first cases, patients with long Covid continue to go through months or years before receiving a diagnosis.

			50-year review shows global Ebola spread remains rare despite outbreak fears Researchers reviewed Ebola disease cases outside Africa from 1976 to May 2026 and found only 28 confirmed epidemic-linked cases, most involving medical evacuation or occupational exposure. Only four latent travelers were diagnosed after border screening, suggesting that undetected intercontinental spread remains rare when outbreaks are controlled at source.

			Losing smell and taste may profoundly affect wellbeing University of East Anglia research reveals that smell loss can affect quality of life as severely as conditions including diabetes, stroke, Parkinson's, and kidney failure.

	Salt-loaded nanoparticles help deliver fragile gene therapies into cells Researchers at the University of Houston's College of Pharmacy have discovered an unexpected simple strategy to improve the performance of mRNA vaccines and gene therapeutics: adding salt.

	Study shows jumping genes can transfer between different species Genes are not passed on exclusively from parents to their offspring. Some are mobile and can also jump to other species, as researchers at the Max Planck Institute for Marine Microbiology in Bremen have now shown.

	Universities and hospitals repurpose existing drugs at significantly lower costs Universities and hospitals are repurposing existing drugs through late-stage trials with funded costs up to 90% lower than those taking place in the pharmaceutical industry.

	Using the mathematics of quantum mechanics to improve neuroblastoma outcomes For a child diagnosed with neuroblastoma-the most common infant cancer, occurring when early nerve cells grow out of control-the path to treatment isn't simple.

	Targeted vaccination strategies strengthen global biosecurity and biosafety Biosafety prevents biohazard risks to humans and the environment, biosecurity protects biological assets from misuse, and One Health is an interdisciplinary framework uniting human, animal, and environmental health—all core to global health protection.

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