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当前学科：传染病
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男性，20岁，工人。2周来发热，体温逐渐升高到39.4℃，畏寒，无寒战，不出汗，伴食欲缺乏，腹胀，稀便，听力下降。体格检查：表情淡漠，舌背白腻苔，胸背部有数个0.5cm大小淡红色丘疹，压之褪色，肝脾肋下均可扪及。该患者感染本病的途径是（）
A . A.呼吸道传播
B . 消化道传播
C . 接触传播
D . 虫媒传播
E . 血液、体液传播
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