This is a presentation material by Associate Professor Hisao Nakai at "Disaster Countermeasures for Medically Vulnerable Children" to be held in Nagano Prefecture on October 1, 2022. For more information on the event please visit the link below: https://www.nagano-shimin.net/2022/09/13/%E5%8C%BB%E7%99%82%E7%9A%84%E3%82%B1%E3%82%A2%E5%85%90%E3%81%AE%E7%81%BD%E5%AE%B3%E6%99%82%E5%AF%BE%E5%BF%9C/