Japan is struggling to contain the virus, which has spread in just one month

A buyer is using a hand sanitizer at Ameya Yokocho Market in Tokyo's Ueno District on December 30.

Photographer: Noriko Hayashi / Bloomberg

Japan’s second state of emergency is set to last a month, but public health experts have already expressed doubts that four weeks is enough time to slow the coronavirus, which is spreading at an alarming rate.

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