I am a doctor and could use some input. Patient is a healthy 17 y/o WM who will be spending one month in remote areas of Thailand. He will be living with locals, swimming, eating, walking barefoot, etc. His mom inquired whether or not he should de-worm upon return to the USA, as many parasites are without symptoms until the disease has progressed. If de-worming is advised, what is the preferable agent, given the 'shotgun' approach to asymptomatic treatment?
Off hand, it seems a reasonable intervention. Any advice?