In 2022, Fukuoka Prefecture had the highest number of Group A streptococcal pharyngitis infections reported, with approximately **** thousand cases. Hokkaido Precture followed with around *** thousand cases.
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NIID (Japan). (April 15, 2024). Number of Group A streptococcal pharyngitis infections in Japan in 2022, by prefecture [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved August 06, 2026, from /statistics/1462506/japan-number-of-group-a-streptococcal-pharyngitis-infections-by-prefecture/
NIID (Japan). "Number of Group A streptococcal pharyngitis infections in Japan in 2022, by prefecture." Chart. April 15, 2024. ÌÇÐÄÆÆ½â°æ. Accessed August 06, 2026. /statistics/1462506/japan-number-of-group-a-streptococcal-pharyngitis-infections-by-prefecture/
NIID (Japan). (2024). Number of Group A streptococcal pharyngitis infections in Japan in 2022, by prefecture. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: August 06, 2026. /statistics/1462506/japan-number-of-group-a-streptococcal-pharyngitis-infections-by-prefecture/
NIID (Japan). "Number of Group A Streptococcal Pharyngitis Infections in Japan in 2022, by Prefecture." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 15 Apr 2024, /statistics/1462506/japan-number-of-group-a-streptococcal-pharyngitis-infections-by-prefecture/
NIID (Japan), Number of Group A streptococcal pharyngitis infections in Japan in 2022, by prefecture ÌÇÐÄÆÆ½â°æ, /statistics/1462506/japan-number-of-group-a-streptococcal-pharyngitis-infections-by-prefecture/ (last visited August 06, 2026)
Number of Group A streptococcal pharyngitis infections in Japan in 2022, by prefecture [Graph], NIID (Japan), April 15, 2024. [Online]. Available: /statistics/1462506/japan-number-of-group-a-streptococcal-pharyngitis-infections-by-prefecture/