streptococcus MG agglutination test

例句：

1. 1. The streptococcus bacteria cause strep throat, a common illness in children.
   链球菌细菌引起咽喉炎，这是一种儿童常见的疾病。
2. 2. Researchers are studying the effects of antibiotics on streptococcus infections.
   研究人员正在研究抗生素对链球菌感染的影响。
3. 3. The streptococcus bacteria can be found in many foods, including cheese and yogurt.
   链球菌细菌可以在许多食物中找到，包括奶酪和酸奶。