Cross-Reactivity
The following organisms were tested at 1.0 x 10
negative when tested with the Strep A Twist Rapid Test Device (Throat Swab).
Bordetella pertussis
Branhamella catarrhalis
Candida albicans
Corynebacterium diphtheriae
Enterococcus faecalis
Escherichia coli
Group B Streptococcus
Group C Streptococcus
Group F Streptococcus
POL Studies
Three physicians' offices were used to conduct an evaluation of the Strep A Twist Rapid Test
Device (Throat Swab). Personnel with various educational backgrounds performed the testing.
Each physician's office tested a randomly coded panel of samples consisting of negative (20),
low positive (20), and medium positive (20) for three days. The results obtained had a 99%
correlation with the expected results.
BIBLIOGRAPHY
1. Murray, P.R., et al. Manual of Clinical Microbiology, 6th Edition, ASM Press, Washington D.C.,
1995, p. 299-307.
2. Webb, KH. Does Culture Confirmation of High-sensitivity Rapid Streptococcal Tests Make
Sense? A Medical Decision Analysis. Pediatrics (Feb 1998), 101:2, 2.
3. Bisno AL, Gerber MA, Gwaltney JM, Kaplan EL, Schwartz RH. Diagnosis and Management of
Group A Streptococcal Pharyngitis. Clinical Infectious Diseases (1997), 25: 574-83.
4. Needham CA, McPherson KA, Webb KH. Streptococcal Pharyngitis: Impact of a High-sensitivity
Antigen Test on Physician Outcome. Journal of Clinical Microbiology (Dec 1998), 36: 3468-3473.
5. Shea, Y.R. Specimen Collection and Transport, Clinical Microbiology Procedures Handbook,
Isenberg, H.D., American Society of Microbiology, Washington D.C., 1.1.1-1.1.30, 1992.
6. Nussinovitch, M, Finkelstein Y, Amir J, Varsano, I. Group A beta-hemolytic streptococcal
pharyngitis in preschool children aged 3 months to to 5 years. Clinical Pediatrics (June 1999),
38: 357-360.
7. Woods WA, Carter CT, Stack M, Connors Jr AF, Schlager TA. Group A Streptococcal Pharyngitis
in Adults 30 to 65 years of age. Southern Medical Journal (May 1999), 491-492.
ENGLISH
Group G Streptococcus
Hemophilus influenzae
Klebsiella pneumoniae
Neisseria gonorrhea
Neisseria meningitidis
Neisseria sicca
Neisseria subflava
Pseudomonas aeruginosa
Serratia marcescens
7
organisms per test and were all found to be
Staphylococcus aureus
Staphylococcus epidermidis
Streptococcus anginosus
Streptococcus intermedius
Streptococcus mitis
Streptococcus mutans
Streptococcus oralis
Streptococcus pneumoniae
Streptococcus sanguinis
14