New paper detects plague bacteria in three of 34 bodies they tested in Britain, all dating to about 4,000 years ago. Research has also found good news for rat loversThough it is rare today, we remain gripped by fear of plague. There is no vaccine against it, though it is treatable with antibiotics as it’s caused by bacteria. It wasn’t treatable at all before the era of modern medicine, and periodically sowed terror and death throughout Eurasia and the Middle East. But the burning questions of the day are: When did it emerge, and when did it first reach Britain?...