Nepal ought to be a good case
They ran the SOPs (but did not factor in that Nepal is hard to get to/around in) so a lot of dogs were flown in to look for people under the rubble who had mostly perished by the time the dogs came. While they were walking their dogs in Kathmandu you really needed water treatment - absence of which can quickly lead to a loss of life that drawfs the ones they might have pulled from the rubble. Fortunately that did come before epidemics happened.
At the same time citizens were either sitting under tarps in the rain, complaining about a lack of water (while not catching the rainwater!), or standing in very long lines at the government water truck that could only serve 1 person at a time because no one had thought of a manifold.