Abstract
Based on national surveillance data, we describe an unprecedented increase in syphilis case reports in Japan, with a surge in 2021–2022 reaching 10 141 cases in Week 42, 2022, a 1.7-fold increase over the same period in 2021. This already represented the highest annual case count in nearly half a century; by Week 52, 2022, the number reached 12 966, far surpassing the 7978 cases in 2021. Predominantly affecting heterosexual men and young women, the proportionate increase in primary and secondary syphilis cases suggests a true increase in incidence. The syphilis surge during the pandemic poses a serious public health concern and underscores the importance of adequate testing and preventive measures.
Funder
Ministry of Health, Labour and Welfare
Subject
Infectious Diseases,Public Health, Environmental and Occupational Health
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