All the 200 necessary varieties of bacteria in my body is further proof that there is a Master Engineer. No flukes.
Actually, there are flukes. Aslo roundworms, flatworms, viruses, prions, malaria and other parasites.
But you hold onto that thought about it all being the deliberate work of a designer or designers. By their fruit you shall know them.
Then why did your master engineer design us in such a way that our body often attacks and damages itself?