The following is a chronology of major events related to the novel coronavirus and Japan.
Jan. 9, 2020 -- Chinese state-run media reports novel coronavirus detected in patient.
Jan. 15 -- 1st coronavirus infection confirmed in Japan.
Feb. 3 -- Quarantine starts on cruise ship Diamond Princess, which arrived at Yokohama Port, group infection later confirmed among passengers, crew members.
Feb. 13 -- 1st death from new coronavirus infection in Japan confirmed.
March 4 -- Domestic infection cases top 1,000, including figures on cruise ship.
March 11 -- WHO declares spread of new coronavirus pandemic.
March 24 -- Tokyo 2020 Olympic and Paralympic Games postponed to 2021 due to pandemic.
April 5 -- Deaths from COVID-19 in Japan top 100.
April 7 -- Prime Minister Shinzo Abe declares state of emergency for Tokyo, six other prefectures.
April 16 -- State of emergency expanded to entire nation, infected people in Japan top 10,000.
May 2 -- Deaths in Japan top 500.
May 14 -- Abe lifts state of emergency in 39 of Japan's 47 prefectures.
May 25 -- State of emergency lifted in remaining prefectures, Tokyo, Hokkaido, Chiba, Saitama and Kanagawa.
June 12 -- Record 31.91 trillion yen ($309 billion) extra budget enacted to mitigate social and economic fallout from coronavirus pandemic.
June 19 -- Advisories on inter-prefecture travel completely lifted in Japan.
July 22 -- Japan's domestic travel subsidy campaign begins to help revive tourism industry battered by coronavirus, excluding Tokyo.
Sept. 19 -- Japan eases restrictions on size of crowds at professional sports matches, movie theaters and other events.
Oct. 1 -- Tokyo added to travel subsidy campaign.
Oct. 29 -- Domestic infection cases top 100,000.
Nov. 22 -- Coronavirus deaths in Japan top 2,000.
Dec. 14 -- Prime Minister Yoshihide Suga announces halt of travel subsidy program during the New Year holidays.
Dec. 18 -- U.S. pharmaceutical giant Pfizer Inc. requests Japan's health ministry to approve its vaccine.
Dec. 21 -- Domestic infection cases top 200,000.
Dec. 22 -- Coronavirus deaths in Japan top 3,000.
Jan. 4, 2021 -- Suga says vaccination against coronavirus can start in Japan in late February.
Jan. 7 -- Suga declares state of emergency for Tokyo and three neighboring prefectures effective the following day through Feb. 7.
Jan. 13 -- Suga declares state of emergency for seven more prefectures including Osaka, Kyoto and Fukuoka. Domestic infection cases top 300,000.