Several presumptive tests were evaluated for their effectiveness in differentiating streptococci. When the tests were combined into a battery and the resulting reactions were interpreted as patterns, the overall presumptive identification rate was at least 97%. We used the hemolytic reaction, susceptibility to bacitracin and sulfamethoxazole plus trimethoprim (1.25 micrograms plus 23.75 microgr...

Aerobic In clusters ● Coagulase (+): Staphylococcus. aureus ● Coagulase (-):Staphylococcus lugdunensis or other coagulase-negative Staphylococcus In pairs/chains ● Optochin sensitive: Streptococcus pneumoniae ● Alpha-hemolytic: Viridans group Streptococcus, Enterococcus species ● Beta-hemolytic: ○ Group A Strep (Streptococcus pyogenes) ○ Group B Strep (Streptococcus agalactiae) ○ Group C, D, G ...

nine hundred and twelve, consecutive patients attended various clinics of isfahan university for various complains have been evaluated for a.s.o. titers among whom 172 has positive nasopharyngeal cultures for type a, b hemolytic streptococcus. all of the patients with positive cultures have a.s.o. titers of above 333 todd’s unit, while with exception of 22 cases all of the others had values of ...

BACKGROUND Here we report a rare case of lumbar spine epidural abscess and facet joint septic arthritis caused by Streptococcus agalactiae, which had spread to the iliopsoas muscles, leading to urine retention. CASE PRESENTATION A 68-year-old woman with low back pain experienced a sudden onset of bilateral lower limb weakness, it was followed 14 days later by urine retention. At consultation,...

Ascending infection of microbes from the lower genital tract into the amniotic cavity increases the risk of preterm birth, stillbirth, and newborn infections. Host defenses that are critical for preventing ascending microbial infection are not completely understood. Group B Streptococcus (GBS) are Gram-positive bacteria that frequently colonize the lower genital tract of healthy women but cause...

The charts of newborn infants with positive direct Coombs' test were studied. Only cases in which the mother's blood was group O and the infant's group A or group B were studied. There was no difference between group A and group B infants in the frequency and severity of the hemolytic process caused by maternal antibodies. In group B infants, monospecific antibodies (anti-B) were associated wit...

1. Confirming the observations of other experimenters, it has been found that group A hemolytic streptococci produce a capsule containing a polysaccharide which is similar to, if not identical with, certain high molecular weight sugars found in the mammalian body. 2. Leech extract possesses a powerful enzyme capable of splitting one of the linkages in this polysaccharide and of decapsulating gr...

Many different blood group systems, such as Rh, ABO, Kell, Kidd, Duffy, MNS, have been reported as causes of hemolytic disease of the newborn. Hemolysis due to minor blood group incompatibility in the fetus or newborn has been determined in isolated case reports. Here, we report a case of a patient who had received red cell transfusion due to severe Rh c and E incompatibility, leading to hemoly...