The cause of larva currens:: (A) Strongyloides stercoralis, (B) Necator americanus, (C) Ankylostoma duodenale, (D) H. nana
Answer is A. Ans. is 'a' i.e., Strongyloides stercoralis(Ref: Harrison, 19th/e, p.1415)* The migrating filariform larva of Strongyloides moves rapidly in a short line at the rate of 3-4 cm in an hour, hence it is termed "larva currens".