1. Skin an animal without gloves.
2. Drink from a well.
3. observe cholera appear, in addition to salmonella which is the only disease you'd expect in the situation.

If wells provide clean water and bloody hands carry salmonella, where does the cholera come from?
Two diseases at once seem a disproportionate punishment.

I guess it's this:

class ActionDrinkWellContinuous
{
	override void OnEndAnimationLoopServer( ActionData action_data )
	{
		if(action_data.m_Player.HasBloodyHands())
		{
			action_data.m_Player.InsertAgent(eAgents.**CHOLERA**, 1);
		}
	}
}