A report shows that people who keep pets take a lower risk of having heart disease because pets bring them much fun.
一项报告显示养宠物的人患心脏病的风险要低一些，因为宠物会给他们带来许多快乐。
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On the 20th anniversary of the first official report on AIDS, the head of the United Nations' AIDS program warns the deadly disease may only be at its early stages in many parts of the world.
WHO is working with national authorities to increase public awareness of the disease, encourage populations to report outbreaks, and warn people to avoid contact with dead or ill birds.