2.3 TIFUS %EC%97%B4%EA%B5%90%EC%B0%A8%EB%8B%A8%EC%9E%AC%EB%A5%BC %EC%9D%B4%EC%9A%A9%ED%95%9C %EC%99%B8%EB%B2%BD %EA%B5%AC%EC%84%B1 %EA%B0%9C%EB%85%90%EB%8F%84