<prompt> Most common helminthic infection in AIDS is:Trichuris trichiuraStrongyloides stercoralisEnterobius vermicularisNector-americanus  <response>: Ans. is b i.e., Strongyloides stercoralis Ref: Paniker Parasitology,6the, p. 173 Amongst the given options only stongyloides causes opportunistic infection in AIDS. Generalised strongyloidosis may be seen in AIDS. Protozoa causing opportunistic infection are: Toxoplasma gondii, Isospora belli, Cryptosporidium species. 