A、<p><span style="font-size: 10.5pt; font-family: 宋体;">经口</span></p>
B、<p><span style="font-size: 10.5pt; font-family: 宋体;">经皮肤</span></p>
C、<p><span style="font-size: 10.5pt; font-family: 宋体;">经呼吸道</span></p>
D、<p><span style="font-size: 10.5pt; font-family: 宋体;">经性接触感染</span></p>
E、<p><span style="font-size: 10.5pt; font-family: 宋体;">经媒介昆虫叮咬</span></p>
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