If syringes are reused without sterilisation, they can spread disease.

如果注射器没有消毒而被重复使用，可能会造成疾病的传播。

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When temperatures rise, the insects that spread disease mature faster and produce more offspring, the report says.

该报告说，当温度上升，传播疾病的昆虫成熟更快，繁殖的后代更多。

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And it also had scientific merit as part of the photographer's research on how mosquitoes carry and spread disease.

它也是拍摄者研究内容的一部分，具有科学价值：研究蚊子如何携带和传播疾病。

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The scientists say the tenofovir gel was also effective against another sexually spread disease.

VOA: special.2010.07.21

One can stop spread of disease through a community without being 100% effective in each person who gets the vaccine.

疫苗能够遏制疾病在整个社区中传播,虽然对于每个人来说它并非百分之百有效

耶鲁公开课 - 生物医学工程探索课程节选

It's an infectious disease; it is spread by--through the air.

它是一种传染病,通过空气传播

耶鲁公开课 - 生物医学工程探索课程节选

Spending long periods in close quarters with others is also known to spread disease.

BBC: In-flight health issues 'on rise'

U.N. scientific experts say a warmer world is likely to spread disease in tropical regions, cause sea levels to rise and increase the rate of severe storms.

CNN: Global warming may 'double heat deaths'

Independent tests on European money conducted by a team of scientists at Oxford University in December 2012, revealed that the average banknote contains 26, 000 bacteria, enough germs to make you feel nauseous, and possibly even spread disease.

CNN: Dirty money? Check your wallet