Good becoming dry babies and infants.

好发干婴幼儿。

Methods 384 hospitalized babies and infants with pneumonia selected randomly were divided into two groups.

方法随机选择住院肺炎婴幼儿384例，分为两组。

From the newborn, the babies and infants to the school-age child, the disease incidence rate and the case fatality rate assume the tendency which drops gradually.

从新生儿、婴幼儿到学龄儿童，发病率及病死率都呈逐渐下降的趋势。