(CNN)The age-old killer scarlet fever is on the rise in England and East Asia, according to research published Monday in The Lancet Infectious Diseases journal, and investigators don't know why.
"Whilst current rates (in England) are nowhere near those seen in the early 1900s, the magnitude of the recent upsurge is greater than any documented in the last century," said study author Theresa Lamagni of Public Health England, the agency that funded the analysis. "Whilst notifications so far for 2017 suggest a slight decrease in numbers, we continue to monitor the situation carefully ... and research continues to further investigate the rise."
http://www.cnn.com/2017/11/27/health...udy/index.html