<prompt> All of the following infections due to nematodes result from ingestion of infective eggs except-Ascaris lumbricoidesEnterobius vermicularisStrongyliodes stercoralisTrichuris trichura  <response>: filariform larvae- infective form Man acquires infection by walking on barefoot on the contaminated soil. The filariform larvae penetrates the skin coming in contact with soil. refer pgno:149 baveja 3 rd edition 