Capsular type and antibiotic resistance in Streptococcus agalactiae isolates from patients, ranging from newborns to the elderly, with invasive infections.
نویسندگان
چکیده
Streptococcus agalactiae isolates (n = 189) from patients with invasive infections were analyzed for capsular type by PCR, for antimicrobial susceptibility, and for the presence of resistance genes. In contrast to the predominance of capsular type III in children, types Ib and V were most common among adults. All 45 levofloxacin-resistant strains had two amino acid substitutions, Ser(81)Leu in the gyrA gene and Ser(79)Phe in the parC gene, and showed similar pulsed-field gel electrophoresis patterns.
منابع مشابه
Streptococcus agalactiae-associated Urinary Tract Infections amongst Male Patients at a Tertiary Care Setting in Southwest India
Introduction: The occurrence of urinary tract infections (UTIs) caused by the group B Streptococcus (GBS) in females is well documented. On the contrary, the prevalence amongst males is infrequent, and studies from the Indian subcontinent are limited. This study aimed to determine the occurrence of GBS bacteriuria and its antibiotic susceptibility profile amongst male patients. Methods: Clean-c...
متن کاملPattern of Infection and Antibiotic Activity among Streptococcus agalactiae Isolates from Adults in Mashhad, Iran
Background: One of the main causes of sexually transmitted diseases is group B β- hemolytic streptococci (GBS) multiplying in the genital tracts. Penicillin is the most common drug for the treatment of infections caused by these bacteria, but in patients suffering from Penicillin allergy, Erythromycin and Clindamycin are used as alternative therapeutic drugs against GBS. Recently, resistan...
متن کاملPrevalence of Virulence Factors and Antimicrobial Resistance of Streptococcus agalactiae and Streptococcus uberis in Ruminant Sub-clinical Mastitic Milk in Iran
Background and Aims: The aim of this study was to determine the virulence and antibiotic resistance properties of Streptococcus agalactiae (S. agalactiae) and Streptococcus uberis (S. uberis) isolated from the ruminant’s sub-clinical mastitic milk in Iran. Materials and Methods: Positive samples in the CMT test were cultured and S. agalactiae and S. uberis have been identified using bi...
متن کاملفراوانی سروتایپ‌های کپسولی استرپتوکوکوس گروه B جدا شده از نمونه های بالینی بر اساس ژنوتایپینگ
Background: Group B Streptococci (GBS) or Streptococcus agalactiae is one of the most common causes of sepsis and meningitis in neonates and of invasive diseases in pregnant women. It can also cause infectious disease among adults with underlying medical conditions like immunocompromised individuals. Polysaccharide capsule is an important virulence factor. Nine GBS serotypes (Ia, Ib, II to VI...
متن کاملUrinary Tract Infections Caused By Group B Streptococcus in Adult Women: Survey of 11800 Urine Culture Results
Background and Objective: Early diagnosis of Streptococcus agalactiae remains difficult, since symptoms are very nonspecific. Its frequency has not been completely investigated in urinary tract pathogen of pregnant ant and non pregnant women in Iran. The aim of this study was determining the frequency of Group B Streptococci in female patients. Materials and Met...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Antimicrobial agents and chemotherapy
دوره 53 6 شماره
صفحات -
تاریخ انتشار 2009