The nationwide spread of COVID-19 in Japan has caused many problems in society, the economy, and education, as well as in the securing of medical care provision systems. This paper discusses the law s involvement with the infectious disease. This paper refers to the current responses concerning legally based movement restriction measures based on the constitution, administrative law, etc., as well as surrounding issues. This paper also studies prejudice and discrimination toward patients and

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... ir families from a legal viewpoint, considering the lessons from the leprosy policies of the past.