TABLE 2.

Results of the molecular screening approach (MSA) versus conventional methods

PathogenNo. of specimens with indicated MSA result No. of specimens with indicated result by conventional methodsc
TotalNo. (%) positivebNo. guided culture/microscopy positiveNo. (%) inhibitedNo. guided culture/microscopy positiveTotalNo. (%) positive
C. jejuni 13,9561,136 (8.1)869246 (1.8)37,004372 (5.3)
G. lamblia 13,952a 662 (4.7)294246 (1.8)19,054300 (3.3)
S. enterica 13,974424 (3.0)376246 (1.8)17,061222 (3.1)
STEC13,928268 (1.9)45255 (1.8)02,1574 (0.2)
Shigella spp./EIEC13,929199 (1.4)36255 (1.8)06,98315 (0.2)
  • a Included were 6,981 stool specimens that were received at our laboratory with a specific request for the detection of parasitic pathogens.

  • b The total number of samples positive for MSA includes the inhibited samples that were guided culture/microscopy positive.

  • c Conventional methods consist of routine culture or microscopy (direct or TFT).