But researchers hope that one day they will be able to do that though a simple blood test, and prevent more deaths like Suzanna's.

VOA: standard.2010.02.08

We want to know your cholesterol, you do a blood test, you get cholesterol.

想要知道你的胆固醇含量,验血后就可以知道

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

There, researchers are developing a test that uses human saliva instead of blood to find those infected with malaria.

VOA: special.2010.04.20

The test uses saliva instead of blood to confirm the infection.

VOA: special.2009.12.22

The test uses saliva instead of blood to diagnose the infection.

VOA: special.2009.12.07

"Most people are not comfortable with the fact that, at the end of it you will test their blood and give them their HIV ."

VOA: standard.2010.06.04