Japanese doctors are preparing for the widest-possible range of medical contingencies they may face during the 2020 Olympics and Paralympics in Tokyo, from the provision of general first aid to major responses to anticipated sweltering weather or a possible terrorrist attack.

Organizers estimate that some 7.8 million people will flock to Olympic venues during the games, and 2.3 million will be in and around Tokyo for the Paralympics.

With such huge numbers expected, the Japanese medical community has put together a consortium of groups to prepare responses to everything from simple medical procedures to full-scale disaster triage.