Posted
by
samzenpus
from the needles-with-a-heart dept.
QuantumG writes "The Bill and Melinda Gates Foundation has awarded a $100,000 grant to the University of Queensland, Australia to develop a vaccine against dengue fever, a disease spread by mosquitoes. Unlike other vaccines, the 'altruistic vaccine' doesn't specifically protect the individual being bitten, but instead protects the community by stopping the transmission of the pathogen from one susceptible individual to another. The hope is to do this by effectively making their blood poisonous to mosquitoes, either killing them or at least preventing them from feeding on other individuals. Professor Paul Young explained how his work fell outside current scientific traditions and might lead to significant advances in global health — he said he could envision the vaccine being used around the world within 10 years, and it would be designed to be cheap and easy to implement."
Posted
by
timothy
from the that's-notional-primordial-soup-to-you dept.
Kristina at Science News writes "The RNA world hypothesis proposed 40 years ago suggested that life on Earth started not with DNA but with RNA. Now a team of scientists bolsters this hypothesis, having assembled RNA in the lab from a mixture that resembles what was likely the primordial soup. 'Until now,' Science News reports, 'scientists couldn't figure out the chemical reactions that created the earliest RNA molecules.' The new work started the RNA assembly chemistry from a different angle than what earlier work had tried."