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数百万的人罹患普通感冒和上呼吸道感染,这是使得抗生素滥用的主要原因之一。通常认为普通感冒是由病毒引起的,但大约30
Millions of people suffer from common cold and upper respiratory tract infections, which is one of the major causes of abuse of antibiotics. The common cold is thought to be caused by a virus, but about 30