A medieval disease is making a comeback across Leeds and our map shows the infections diagnosed near you.
Since the early 2000s syphilis - and gonorrhoea - have re-emerged as major public health concerns. A decade ago there were 3,000 cases of syphilis diagnosed in England, just over a third as many as last year, while the infection rate has trebled from 5.6 syphilis cases per 100,000 of the population in 2012 to 15.4 last year.
In the late 18th century, at least one in five Londoners had contracted syphilis, known as “the pox”, by their 35th birthday, their research shows. They also found that Georgian Londoners were over twice as likely to be treated for the disease than people living in the much smaller city of Chester, and 25 times more likely than residents of rural Cheshire and north-east Wales.