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[Correspondence] Strongyloides stercoralis: the need for accurate information

We were glad to see that the authors of the Seminar on soil-transmitted helminth infections (Jan 20, p 252)1 included Strongyloides stercoralis in their review. As the authors properly state, this parasite is rarely considered by soil-transmitted helminth control programmes, despite the harm potentially caused (hyperinfection being almost invariably fatal).2 It seems almost superfluous to say that the use of the most sensitive diagnostic techniques is mandatory to rule out the infection. Hence, we were surprised to read that the authors skipped the big issue represented by the low sensitivity of stool examination,3 and even stated that “a single wet mount stool preparation can reveal filariform larvae”.