As of April 20, 2020, the highest number of hospital-acquired infections (HAI) with the coronavirus disease(COVID-19) was recorded in Tokyo Prefecture, in which 375 cases were confirmed across eight hospitals. The northernmost prefecture Hokkaido had the second highest number of hospital-acquired infections with 95 cases in seven hospitals.
For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figure page.
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Japanese Nursing Association. (April 22, 2020). Number of hospital-acquired infections (HAI) of coronavirus disease (COVID-19) in Japan as of April 20, 2020, by prefecture [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/1114008/japan-number-hospital-acquired-infection-coronavirus-by-prefecture/
Japanese Nursing Association. "Number of hospital-acquired infections (HAI) of coronavirus disease (COVID-19) in Japan as of April 20, 2020, by prefecture." Chart. April 22, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/1114008/japan-number-hospital-acquired-infection-coronavirus-by-prefecture/
Japanese Nursing Association. (2020). Number of hospital-acquired infections (HAI) of coronavirus disease (COVID-19) in Japan as of April 20, 2020, by prefecture. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/1114008/japan-number-hospital-acquired-infection-coronavirus-by-prefecture/
Japanese Nursing Association. "Number of Hospital-acquired Infections (Hai) of Coronavirus Disease (Covid-19) in Japan as of April 20, 2020, by Prefecture." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 22 Apr 2020, /statistics/1114008/japan-number-hospital-acquired-infection-coronavirus-by-prefecture/
Japanese Nursing Association, Number of hospital-acquired infections (HAI) of coronavirus disease (COVID-19) in Japan as of April 20, 2020, by prefecture ÌÇÐÄÆƽâ°æ, /statistics/1114008/japan-number-hospital-acquired-infection-coronavirus-by-prefecture/ (last visited July 31, 2026)
Number of hospital-acquired infections (HAI) of coronavirus disease (COVID-19) in Japan as of April 20, 2020, by prefecture [Graph], Japanese Nursing Association, April 22, 2020. [Online]. Available: /statistics/1114008/japan-number-hospital-acquired-infection-coronavirus-by-prefecture/
