El Paso Port Director William Molaski says officers are trying to identify people who might be infected with the swine flu virus.

VOA: standard.2009.04.30

But it can be acquired in the air, from patients that are from- from other individuals that are infected.

天花会通过空气传播,通过病人和其他感染者呼出的空气传播

耶鲁公开课 - 生物医学工程探索课程节选

They have predicted that up to one fifth of the Australian population about four million people could be infected by the swine flu virus.

VOA: standard.2009.05.30

To test this idea, the team in Cuba offered $100 to anyone who would agree to be bitten by infected mosquitoes.

VOA: special.2009.01.27

Early identification of the disease may be difficult because many infected people do not show any immediate symptoms.

VOA: special.2010.01.04

To test this idea, the team in Cuba offered one hundred dollars to anyone who would agree to be bitten by infected mosquitoes.

VOA: special.2010.05.18

"Hepatitis B is the silent killer because most people who are chronically infected may not be aware of the infection."

VOA: standard.2010.07.26

The virus can be transmitted by unsafe sex and unsterile needles, but most people who suffer from the disease become infected at birth from their mothers.

VOA: standard.2010.07.26

"I think the realistic aspect is that particularly for people who are HIV infected, you cannot right now, with resources that are available, get everyone who needs to be on therapy in the developing world,on therapy.

VOA: standard.2010.07.17