TABLE 3.
Epidemiology, phenotypic characteristics, and antibiotic susceptibilities of S. pseudoporcinus clinical isolates
| Parameter | Characteristic of reference study |
||||
|---|---|---|---|---|---|
| This study | 1 | 2 | 3 | 4 | |
| Yr or period of isolate collection (duration) | 2014–2015 (14 mo) | 1995–2005 | 1997–2006 | 1984–2010 | 2006 (18 mo) |
| Location(s) | MD, USA | Quebec, Canada | Quebec, Canada | United States, Brazil | United Statesa |
| Patient type(s) | Women | Women | Pregnant women | Men, womenb | Nonpregnant women |
| No. of S. pseudoporcinus isolates | 32 female genital cultures,c 1 urine culture, 1 wound culture | 9 female genital cultures | 14 female genital cultures, 1 urine culture | 72 human sourcesd | 120 female genital cultures (36 patients) |
| Mean (range) or range of patient ages (yr) | 27 (21–44) | 30 (21–49) | 33 (21–43) | NA | 30–40 |
| % S. pseudoporcinus colonization prevalence (no. colonized/total) | 1 (32/3,276) | NAi | NA | NA | 5.4 (36/663) |
| No. (%) of isolates with positive GBS typing, antigen agglutination kit (company) | 28 (93), PathoDx (Remel),e 13 (38), Prolex (Pro-Lab), 16 (53), Streptex (Remel) | 0 (0), Streptex (Murex) | 14 (93), PathoDx (Remel)f | 60 (83), PathoDx (Remel)g | 120 (100), PathoDx (Remel)h |
| Susceptibility test type | Disk diffusion | NA | Disk diffusion | Broth microdilution | NA |
| No. (%) of isolates susceptible to: | |||||
| Clindamycin | 27g (82) | NA | 15 (100) | 70 (97) | NA |
| Erythromycin | 27g (82) | NA | 15 (100) | 70 (97) | NA |
Pittsburgh, PA; Augusta, GA; and Houston, TX.
Three men, 50 women (available clinical characteristics of 50 of 59 patients).
Twenty-five pregnant, 7 nonpregnant.
Blood, wound, cervix, vagina, placenta, throat.
Using the CDC interpretation, PathoDx GBS latex reagent testing revealed that 17 S. pseudoporcinus isolates (57%) reacted strongly and 14 (37%) reacted weakly.
Using Upitt interpretation (4).
Using the CDC interpretation, PathoDx GBS latex reagent testing revealed that 10 S. pseudoporcinus isolates (14%) reacted strongly and 50 (69%) reacted weakly.
Thirty-three isolates were available for susceptibility testing.
NA, data not available.