侵入的人数A组链球菌感染一直在增加，在过去的几年中。
The number of invasive group a streptococcal infections have been increasing in the last years.
在扁桃体摘除组，74例儿童在开始日期到16岁之前至少有一次链球菌感染。
In the tonsillectomy group, 74 children experienced at least one strep infection after the index date and before age 16.
在扁桃体摘除组，74例儿童在开始日期到16岁之前至少有一次链球菌感染。
In the tonsillectomy group, 74 children experienced at least one strep infection after the index date and before age 16.
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