On Thursday, 3 July 2025, a positive case of measles was confirmed in the jurisdiction of the Kanagawa Prefectural Public Health Centre.
As a result of epidemiological investigations conducted by the Kanagawa Prefectural Public Health Centre, it has been determined that the patient visited facilities within the Expo 2025 Osaka, Kansai venue and may have come into contact with unspecified individuals. Therefore, we are issuing this broad warning to raise attention to those who have visited the Expo site on 21 June. Additionally, health monitoring will be conducted for staff members who worked at the facilities used by the patient, under the guidance of the Osaka City Health Department.
Please note that this notice is being simultaneously released by Kanagawa Prefecture, Osaka Prefecture, and Osaka City.
(For reference)
・Kanagawa Prefecture: https://www.pref.kanagawa.jp/docs/ga4/prs/r9020672.html
・Osaka Prefecture: https://www-pref-osaka-lg-jp-e.athp.transer.com/hodo/fumin/o100030/prs_51102.html
・Osaka City: https://www.city.osaka.lg.jp/hodoshiryo/kenko/0000657216.html