WASHINGTON: An experimental vaccine against malaria known as Mosquirix -- or RTS,S -- weakens over time and is only about four percent effective over a seven-year span, researchers said.
LONDON: A team of sniffer dogs set up at a British airport at a cost of 1.25 million pounds have proved adept at discovering small amounts of cheese and sausages but not so good at finding smuggled drugs, a report said on Thursday.
SAN FRANCISCO: Unemployed smokers have more difficulty finding a job - and when they do find one, they tend to earn less than their smoke-free counterparts, a study suggests.