Reitmeyer J C, Guthrie R K, Steele J H
Department of Microbiology, University of Texas Medical Branch, Galveston 77550.
Microbios. 1989;58(236-237):183-7.
The frequency of the serum opacity reaction (SOR) and nicotinamide adenine dinucleotide glycohydrolase (NADase) production in non-A groups of beta-haemolytic streptococci isolated from humans and animals was surveyed. The SOR was positive with five of eighteen group B isolates (28%), four of fifteen group C (27%), two of five group F (40%), and thirty-seven of sixty-eight group G (54%) isolates. NADase activity, in addition to SOR, was found in three of eighteen group B isolates (17%), three of fifteen group C (20%), forty of sixty-eight group G (59%), and none of the group F isolates. The SOR was produced by forty-eight (45%) and NADase was produced by fifty-one (48%) of the one hundred and six isolates of non-group A beta-haemolytic streptococci. Twenty-five percent of the isolates were both NADase and SOR positive.
对从人和动物中分离出的非A组β溶血性链球菌的血清混浊反应(SOR)频率和烟酰胺腺嘌呤二核苷酸糖水解酶(NADase)产生情况进行了调查。18株B组分离株中有5株(28%)SOR呈阳性,15株C组中有4株(27%),5株F组中有2株(40%),68株G组中有37株(54%)分离株SOR呈阳性。除SOR外,18株B组分离株中有3株(17%)、15株C组中有3株(20%)、68株G组中有40株(59%)检测到NADase活性,F组分离株均未检测到。106株非A组β溶血性链球菌分离株中,48株(45%)产生SOR,51株(48%)产生NADase。25%的分离株NADase和SOR均呈阳性。