Skip to main content
. 2017 Feb 22;55(3):859–864. doi: 10.1128/JCM.02076-16

TABLE 2.

Results of PYR broth and rapid PYR disc/slide testing at the two testing sites

Organisma No. of strains tested Reference PYR brothb (% of positive tests) Rapid PYR disc/slide test results by manufacturerc (% of positive tests)
A B C D
E. faecalis ATCC 29212 1 100 100 100 100 100
S. agalactiae ATCC 12386 1 0 0 0 0 0
S. aureus ATCC 25923 1 0 0 0 0 0
S. pseudintermedius LMG 22219T 1 100 100 100 100 100
S. delphini (group A) 9 100 100 100 100 94.4d
S. delphini (group B) 12 100 100 100 100 100
S. delphini (groups A and B) 21 100 100 100 100 97.6e
a

LMG, Collection of the Laboratorium voor Microbiologie en Microbielle Genetica.

b

Thermo Fisher Scientific (Remel); tested only at the University of Tennessee.

c

Manufacturers are A, Thermo Fisher Scientific (Remel); B, Becton, Dickinson and Company; C, Hardy Diagnostics; and D, Key Scientific Products. All rapid test kits were tested once in each of two laboratories.

d

One S. delphini group A isolate, S. delphini MI 09-2894, tested negative using the Key Scientific Products PYR disc kit at Weill Cornell Medical College. Of a total of 18 tests results available from both testing sites for the S. delphini group A isolates (9 results from each site), 94.4% (17/18) were positive.

e

Of 42 test results from both testing sites available for the S. delphini group A and B isolates combined (21 results from each testing site), 97.6% (41/42) were positive.