Syphilis — Japan
In recent years, the number of syphilis cases has surged in Japan. In 2015, we reported on a big increase in syphilis cases in Japan where well over 2000 cases were recorded, a 4-fold increase from just 5 years earlier. In the past 2 years, more than 5500 cases were reported in 2017 and more than 6000 last year . Through [13 Nov 2019], the National Institute of Infectious Diseases (NIID) reported 5703 syphilis cases, including 1464 cases in Tokyo and 921 cases in Osaka.