人老了,难免患有这样那样的病,去医院看病住院治疗的次数和时间比年轻人多得多。需要提醒的是,切防医院感染,一不小心就碰上了,自己不曾察觉,旧病未愈,又罹新病,可能是重病,岂不哀哉。医院感染或称医院内交叉感染。在美国医病控制中心,制订的标准为:入院时无感染或 People are old, inevitably suffering from such a disease, go to the hospital for treatment of hospitalized times and the time much more than the young. Need to be reminded that, cut off the hospital infection, accidentally run into, and he did not aware of the old disease healed, but also suffer from a new illness, may be seriously ill, would not it sad. Hospital infection or cross-infection in hospitals. At the Centers for Disease Control and Prevention in the United States, the standard set is: No infection or at admission