BACKGROUND The roles of group C and F streptococci in causing endemic pharyngitis are still controversial, although group C streptococci are implicated in the outbreaks of pharyngitis and associated disorders. AIM The aim of this study was to determine the prevalence and the role of these groups of β-hemolytic streptococci in acute pharyngitis with emphasis on the Streptococcus anginosus grou...

BACKGROUND The guidelines from the American College of Physicians and the Infectious Diseases Society of America differ with respect to the use of clinical criteria and microbiologic testing to identify adults with pharyngitis who are likely to have group A beta-hemolytic streptococci. METHODS To measure the rate of adherence to 3 strategies, we performed a retrospective analysis of visits to...

Group A Streptococcus (GAS) pharyngitis is a very common condition causing significant morbidity in children. Accurate diagnosis followed by appropriate antimicrobial therapy is recommended to prevent postinfectious sequelae. Diagnosis of GAS pharyngitis by a rapid antigen detection test (RADT) or culture in the absence of discriminating clinical findings remains challenging. Validation of new ...

Background: Acute pharyngitis is one of the most common illnesses for which patients visit primary care physicians. Its etiology is primarily viral in adults. Only about 10% of cases have a bacterial cause. Nonetheless, a total of 78-98% of adults with acute pharyngitis was treated with antibiotics. Thus, virological investigation prior to treating would support the appropriate use of antiviral...

The human pathogen Group A Streptococcus (Streptococcus pyogenes, GAS) is widely recognized as a major cause of common pharyngitis as well as of severe invasive diseases and non-suppurative sequelae associated with the existence of GAS antigens eliciting host autoantibodies. It has been proposed that a subset of paediatric disorders characterized by tics and obsessive-compulsive symptoms would ...

BACKGROUND It is postulated that the surge in incidence and severity of group A streptococcus (GAS) infections since the 1980s is due to the emergence of strains of GAS with increased virulence. We used active, population-based surveillance of invasive GAS disease, serologically confirmed pharyngitis, and carriage to determine whether particular strains were associated with invasive disease. ...

BACKGROUND Acute pharyngitis is a very common respiratory tract infection. Rapid antigen tests (RATs) that detect group A streptococci (GAS) have an advantage over conventional throat culture in determining the cause of acute pharyngitis quickly. The efficiency of RAT should be good enough to be used in the laboratory or in the clinics. METHODS From October 2008 through February 2009, throat ...

There are few good-quality studies of the effectiveness of antibiotic treatment of proven group A streptococcal (GAS) pharyngitis in children; available data suggest that antibiotics may reduce symptom duration. While there is limited justification for antibiotic treatment of GAS pharyngitis to prevent acute rheumatic fever in non-Indigenous Australians, there is no justification for routine an...

BACKGROUND AND OBJECTIVE Group A beta-hemolytic streptococcus (GABHS) is an important pharyngotonsillitis etiologic agent in children. The objective of this study was diagnosis of streptococcal pharyngitis based on rapid antigen detection test and conventional pharyngeal culture. MATERIALS AND METHODS The rapid GABHS antigen detection test was compared to culture on blood agar, the gold stand...