"In some of the governorates, have not a single member working, without any source of income, which is in turn having a huge impact on their ability to afford rented accommodation and their ability to buy food in a country where the public distribution system is failing quite badly,".

VOA: standard.2009.09.20

You might not know have any symptoms, you might just have a latent source of the microorganism somewhere in your body.

你可能没有任何症状,微生物可能只是在体内某处,暗中不断滋生

耶鲁公开课 - 生物医学工程探索课程节选