| detection of shigella by a pcr assay targeting the ipah gene suggests increased prevalence of shigellosis in nha trang, vietnam. | shigella spp. are exquisitely fastidious gram-negative organisms which frequently escape detection by traditional culture methods. to get a more complete understanding of the disease burden caused by shigella in nha trang, vietnam, real-time pcr was used to detect shigella dna. randomly selected rectal swab specimens from 60 shigella culture-positive patients and 500 shigella culture-negative patients detected by population-based surveillance of patients seeking care for diarrhea were processed ... | 2004 | 15131166 |