Hospital exposure, contact to measles patients and floating population were risk factors which made this disease spread.
医院暴露、与麻疹病人接触、人口流动是本次麻疹传播的重要危险因素。
2
As a result, the floating population to contain the spread of HIV is no time to lose.
因此,遏制流动人口的艾滋传播已刻不容缓。
3
The results showed that TMV spread mainly by clipping with very high efficiency, and clipping was the most important and effective approach of tobacco mosaic spreading in floating seedbed system.