目的为了研究医院感染人数与不同季节的关系。
OBJECTIVE To investigate the relationship between bacterial infection number in hospitals and different seasons.
同时，在医院外的感染人数也下降了百分之17。不过这些接受调查的人都是和医疗系统有过接触的。
There was also about a 17 percent decrease in the infections that start in people outside the hospital, but are in people that have contact with the health care system.
在美国，每年医院的感染人数估计接近200万，其中大约10万例感染者死亡。
In the United States alone, the number of infections in hospitals is estimated at close to two million each year. About one hundred thousand patients die.
在美国，每年医院的感染人数估计接近200万，其中大约10万例感染者死亡。
In the United States alone, the number of infections in hospitals is estimated at close to two million each year. About one hundred thousand patients die.
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