Objective:To study the effect of prophylactic antibacterial on prognosis of patients with epidemic type B encephalitis.
目的：研究并确定抗菌药物的预防性应用对乙型脑炎患儿预后的影响。
Objective: To observe the effect and endurance of the polysaccharose vaccine for prevention of epidemic encephalitis caused by Type a virus.
目的：观察A群流脑多糖菌苗的免疫效果和免疫持久性。
Objective: To observe the effect and endurance of the polysaccharose vaccine for prevention of epidemic encephalitis caused by Type a virus.
目的：观察A群流脑多糖菌苗的免疫效果和免疫持久性。
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