Rapid resurgence of syphilis in Japan after the COVID-19 pandemic: A descriptive study

被引:16
作者
Komori, Akira [1 ,2 ,3 ]
Mori, Hirotake [1 ]
Xie, Wenke [1 ]
Valenti, Simon [1 ]
Naito, Toshio [1 ]
机构
[1] Juntendo Univ, Fac Med, Dept Gen Med, Tokyo, Japan
[2] Tsukuba Mem Hosp, Dept Emergency & Crit Care Med, Tsukuba, Japan
[3] Univ Tsukuba, Fac Med, Dept Hlth Serv Res, Tsukuba, Japan
关键词
D O I
10.1371/journal.pone.0298288
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Some countries have reported a post-pandemic resurgence in syphilis prevalence, but trend data in the World Health Organization Western Pacific Region (WHO-WPRO), including Japan, are severely lacking. Thus, the present study compares the number of syphilis cases before and after the COVID-19 pandemic in some WHO-WPRO countries. In addition, temporal trends in the number of syphilis cases in Japan pre- and post-pandemic are described. Annual numbers of syphilis cases during the study periods from China, New Zealand, Australia and Japan were compared. Annual trends of the numbers of syphilis cases during the same study periods were examined in Japan. In 2020, the number of syphilis-positive cases decreased in all four countries. In 2021, though, China, Australia and Japan all showed an increase in the numbers of syphilis cases. However, the rate of increase in China (+2.8%) and Australia (+4.8%) was low compared to Japan (+36.0%). The number of syphilis cases in New Zealand in 2021 was 12.6% lower than in 2020. In 2022, the number of cases of syphilis in China was 7.4% lower than in 2021. The increase of syphilis-positive cases was approximately 6.3-fold higher in Japan compared to Australia (+66.2% vs. +10.5%) in 2022. In conclusion, post-pandemic resurgence of syphilis occurred in Australia and Japan, but not in China and New Zealand. The reason for the substantial increase in syphilis-positive cases in Japan remains unclear. Post-pandemic, prevention and control of sexually transmitted infections still require attention.
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