Newborns weighed more than 3 Kg and infants older than one month were not treated by erythromycin, but with supportive methods, the clinical symptoms and signs still improved gradually.

• 体重3公斤以上之新生儿及满一个月以上之婴儿感染后，虽未使用红黴素但用其他支持疗法，临床症状亦会逐渐进步。