The ethics of human challenge trials

The first human challenge trial to test COVID-19 treatments and vaccines is set to begin in January in the United Kingdom. These trials, in which healthy volunteers are infected with the virus after being given different vaccines under development, have sparked ethical debates around the benefits of developing a vaccine quickly and the risks of…

Research shows disparities in how communities respond to cardiac arrest

Black neighborhoods had a significantly lower rate of bystander automated external defibrillator (AED) use relative to non-Hispanic/Latino white communities, according to researchers at The University of Texas Health Science Center at Houston (UTHealth). Hispanic/Latino neighborhoods also had lower rates of AED use, according to the study, which was published in a recent edition of Circulation,…

Several U.S. populations and regions exposed to high arsenic concentrations in drinking water

A new national study of public water systems found that arsenic levels were not uniform across the U.S., even after implementation of the latest national regulatory standard. In the first study to assess differences in public drinking water arsenic exposures by geographic subgroups, researchers at Columbia University Mailman School of Public Health confirmed there are…

Glyphosate can create biomarkers predicting disease in future generations

PULLMAN, Wash. – Exposure to the widely used weed-killer glyphosate makes genetic changes to rats that can be linked to increased disease in their grandchildren and great-grandchildren, a new study has found. The study provides evidence that glyphosate-induced changes to sperm from exposed rats could be used as biomarkers for determining propensity in subsequent generations…