Controversial trials in which volunteers are intentionally infected with Covid-19 could accelerate vaccine development, according to the World Health Organization, which has released new guidance on how the approach could be ethically justified despite the potential dangers for participants. So-called challenge trials are a mainstream approach in vaccine development and have been used in malaria,…
U.S.|Grand Juror in Breonna Taylor Case Says Deliberations Were MisrepresentedThe Kentucky attorney general’s office said it would release the panel’s recordings after a grand juror contended in a court filing that its discussions were inaccurately characterized.Breonna Taylor's family and the lawyer Ben Crump, right, said the charges a Kentucky grand jury agreed upon in the…
(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…