临床链球菌感染,特别是上呼吸道感染几乎都由链球菌A、B、C、G族引起。多年来A族链球菌已被认为是链球菌类致病的主要原因。近年来B族链球菌被认为于新生儿败血症及脑膜炎有比A族更高的发生率,它又可在成人中引起鼻窦炎,中耳炎和咽喉炎,而C族及G族链球菌则同样是可造成咽炎、心内膜炎及败血症或其他感染综合征的危险致病原。为了感染病原的诊断及流行病学调查,必须 Clinical streptococcal infections, especially upper respiratory infections are almost always caused by streptococci A, B, C, G. Group A Streptococcus has been considered for many years the main cause of streptococcal disease. In recent years, Group B Streptococcus is believed to have a higher incidence in neonates with sepsis and meningitis than in group A, which in turn can cause sinusitis, otitis media and pharyngitis in adults, while Group C and Group G streptococci are the same It can cause pharyngitis, endocarditis and sepsis or other infectious syndrome risk pathogens. In order to infect the pathogen diagnosis and epidemiological investigation, must