Yeah, he had nightmares about the mosquitoes. Malaria weakened his heart and finally killed him, but not until age 75. He was in HQ, so wasnt on the front line, but one of his duties was running dispatches up to the front.
Mold was everywhere, in the morning you shook the bugs out of your boots and scraped the mold off before putting them on.
But in a way Malaria saved his life- he arrived as a civilian aircrew for Boeing on Dec 8th, volunteered, caught malaria and was invalided to Australia then home before the Philippines fell. Otherwise Bataan death march.
Then someone in the Bataan gang requested my Dad back into HQ. Almost certainly not Mac himself.