From Chapter IV, Maggots with sambal, in The Sumatra Railroad: Final Destination Pakan Baroe, 1943-1945, by Henk Hovinga, trans. by Bernard J. Wolters (KITLV Press, 2010), pp. 184, 186:
A great problem in many camps was the acquisition of an adequate amount of proteins. Even though in Camp 3 little fish were caught in the river with a klamboe [= Malay kelambu ‘mosquito net’, also borrowed into Tok Pisin], most other camps were not near a river. Again Indonesians knew that the maggots of fire ants and coconut beetles were edible and also palatable when cooked with sambal. Doctor W.J. van Ramshorst, who was fighting a losing battle against disease, came to similar conclusions:
‘The greatest problem was the lack of food. The sick men were totally emaciated and had lost their immunity to all kinds of infectious diseases. I got the idea to use maggots from the chickens that were quickly becoming fat foraging around the latrines, feeding on the fly maggots there. There was always a cloud of flies buzzing over the holes in the ground where people were defaecating. And I thought to myself, what is good for chickens, must also be good for men. It is a filthy story, but we hauled those maggots by the bucketful from the latrines, washed them, cooked them and gave them to the sick men with sambal. On this protein rich diet their condition improved visibly.
I made another discovery in that terrible camp, where those working on the railroad were sent to die. We had no disinfectants to treat the filthy tropical ulcers. But again maggots were the solution. I bound an old rag with larvae around the wound and after a few days it was cleaned beautifully. Many still died from undernourishment, beri-beri, malaria and bacillary dysentery, for which we had no cure. But at least with those maggots we were able to save a good number of our people.’
POW Ben Wolters discovered another remedy for tropical ulcers, when two large ones developed on his left foot instep. One afternoon he was sleeping on his left side on the balé-balé [bamboo stretcher on wooden posts] with his left foot instep toward the boards. He woke up due to an itch in the ulcers, which had turned dark red. When he took a closer look and inspected them he saw tiny ants. They had removed all deleterious material. After [he removed] the tiny ants, he covered the wounds with a cloth patch and glued it with fresh liquid latex from a rubber tree. Soon the wounds were healed. And so ants and maggots made a positive contribution to the POWs’ lives.