劍橋詞典an infection that is common in Central and South America , caused by a parasite (= a small creature that lives in the body of other creatures ) and spread by insects 南美錐蟲病，恰加斯氏病 Chagas disease kills 50,000 people yearly in Central and South America . 在中南美洲，南美錐蟲病每年導致50,000人死亡。 返回 Chagas disease