Switzerland
Practice Relating to Rule 110. Treatment and Care of the Wounded, Sick and Shipwrecked
Section B. Distinction between the wounded and the sick
Switzerland’s Basic Military Manual (1987) states: “At all times, and especially following an engagement, all means should be taken to search for and collect the wounded …
whether friend or foe.”

(emphasis added)
The manual further states: “
Only emergency medical reasons shall establish the priority in the treatment of friendly or enemy wounded.”

(emphasis added)
Switzerland’s Regulation on Legal Bases for Conduct during an Engagement (2005) states:
In
combat, the disarmament, rescue of and the provision of first aid to the wounded, sick and shipwrecked begins as soon as the situation allows. … No distinction may be made between friend and enemy or between civilian and military personnel. Purely medical criteria determine the priority in medical treatment. No one may be punished for having cared for the wounded or sick.
Switzerland’s ABC of International Humanitarian Law (2009) states:
Wounded, sick and shipwrecked
…
International humanitarian law calls on all parties to a conflict to treat the wounded and sick in a humane way, i.e. to shelter, rescue and protect them and to provide medical care. No distinction is to be made, except of a medical nature, and
Women are given special consideration. The same rules apply to shipwrecked persons, i.e. to all members of the armed forces and civilians in danger at sea or in any other body of water.