Health Lack of US bird flu tracking in cows may raise risk of human infection The strategy for tracking bird flu in US dairy cattle falls worryingly short of what is needed to prevent the outbreak from widening and potentially spreading to humans NewsSubscriber-only
Humans Plague first came to Britain from Europe at least 4000 years ago DNA from Yersinia pestis, the bacterium that caused the Black Death, has been found in the teeth of three people who lived in Britain during the Bronze Age NewsFree