Medical Journal of the Islamic Republic Of Iran
مجله پزشکی جمهوری اسلامی ایران
Med J Islam Repub Iran
Medical Sciences
http://mjiri.iums.ac.ir
2
journal2
1016-1430
2251-6840
8
10.18869/mjiri
14
8888
13
en
jalali
1374
7
1
gregorian
1995
10
1
9
3
online
1
fulltext
en
RAPID IDENTIFICATION OF GROUP A STREPTOCOCCI BY PYRROLIDONYL-β-APHTHYLAMIDE HYDROLYSIS
Microbiology and Anatomy
Microbiology and Anatomy
Original Research: Basic Science in Medicine
Original Research: Basic Science in Medicine
In a clinical trial a new pyrrolidonyl-β-naphthylamide (PYR) hydrolysis test
was compared with the bacitracin disk susceptibility test for accuracy in the
presumptive identification of group A streptococci (GAS). Among 128 isolates of
beta-hemolytic streptococci 93 group A isolates were found. The sensitivity of the
PYR and bacitracin tests were similar (98.9%), but the bacitracin test had a lower
specificity (80%) than the PYR test (100%). The efficiency of the PYR and
bacitracin test were 99.2% and 93.7%, respectively. All bacitracin tests were
performed on subcultures of the isolates from the primary plate, whereas PYR
testing was performed on colonies from the primary plate. This shortened the
turnaround time for the PYR test compared to the bacitracin test by at least 24
hours.
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http://mjiri.iums.ac.ir/browse.php?a_code=A-10-298-530&slc_lang=en&sid=1
M. MEHDI
ASLANI
20031947532846005889
20031947532846005889
Yes
From the Department of Microbiology, Pasteur Institute of Iran, Pasteur Avenue, Tehran
REZA
GHARAGOZLOO
20031947532846005890
20031947532846005890
No
the Department of Pathobiology School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.