According to the Encyclopedia of Infectious Diseases, Rheumatic Fever only afflicts about three percent of streptococcal infections, but it is more common in young children between the ages of 5 to 14.

根据《传染百科全书》，风湿热只会约3%的链球菌感染，在5到14岁的童中更常见。

So rheumatic heart disease is a result of repeated streptococcal infections.

所以风湿性心反复的链球菌感染的结果。

A year later, a woman with streptococcal septicaemia was successfully treated with penicillin in the US.

一年后，美国成功使用青霉素治疗了一位患有链球菌败血症的女性。