He could have been invaded by evil spirits... did exorcism work?
Actually with the multiple endemics, long term malnourishment and tainted water a systemic shut down in an infant is not unheard of, the constant multiple stresses on all systems can cause the individual sytems to systematically shut down. The sleeping/loss of weight could be from the adrenal/endocrine shutdown, esp. thyroid malfunction and related pituitary malfunction as a secondary to the thyroid issue. I'm almost positive that there is little if no iodine in the diet to include the mother's diet while nursing. Did you check for scurvy and rickets... I would go for the more nutirtive based disease states at this point - they mimic infectious diseases, esp. when there are combinatory deficiencies in play.
Actually with the multiple endemics, long term malnourishment and tainted water a systemic shut down in an infant is not unheard of, the constant multiple stresses on all systems can cause the individual sytems to systematically shut down. The sleeping/loss of weight could be from the adrenal/endocrine shutdown, esp. thyroid malfunction and related pituitary malfunction as a secondary to the thyroid issue. I'm almost positive that there is little if no iodine in the diet to include the mother's diet while nursing. Did you check for scurvy and rickets... I would go for the more nutirtive based disease states at this point - they mimic infectious diseases, esp. when there are combinatory deficiencies in play.