First of all, it is certain that Bell will get strong medical assistance to ensure his health, whether he has parasites or not, which is beyond doubt. At this point, the problem has actually been solved, but there are still some doubts about parasites that need to be explained to you.
Secondly, if the statement that Bell eats raw food in the program is completely true, that is, the food is really caught in the wild and swallowed after eating, then it is certain that no matter what background Bell has, ordinary people or special forces, as long as raw food contains parasites, there must be a great chance that there will be parasites in Bell's body. In any case, after eating bugs, frogs and snakes, Bell must be strictly examined and treated by doctors.