目的：调查新疆学龄儿童A族链球菌(GAS)上呼吸道带菌情况。
OBJECTIVE: to study the prevalence rate of upper respiratory tract group a Streptococcus (GAS) carriage in school-age children from Xinjiang Province.
目的：探讨乳过氧化物酶系统在口腔微生态环境中对链球菌族生长和菌种平衡的影响。
Objective:To study the effects of lactoperoxidase system on the growth of streptococcus in contineous culture.
变形链球菌族（MS）是目前公认的致龋菌，其中与人类龋病发生关系密切的是变形链球菌和茸毛链球菌。
Mutans streptococci (MS) are the primary cariogenic agents, and Streptococcus mutans and Streptococcus sobrinus are believed to have the closest relationship with human caries.
变形链球菌族（MS）是目前公认的致龋菌，其中与人类龋病发生关系密切的是变形链球菌和茸毛链球菌。
Mutans streptococci (MS) are the primary cariogenic agents, and Streptococcus mutans and Streptococcus sobrinus are believed to have the closest relationship with human caries.
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