The vaccine did not lower the amount of virus in the blood of volunteers who became infected during the study.

VOA: special.2009.10.13

People infected with the virus walk in a bent-over position because of the severe pain in the joints.

VOA: special.2009.04.13

The other was its ability to reduce the amount of virus in the blood of people who became infected during the study.

VOA: special.2009.09.30

The other was the vaccine's ability to reduce the amount of virus in the blood of people who became infected during the study.

VOA: special.2009.10.13

Two studies showed ways in which anti-H.I.V.drugs could permit infected women to breastfeed their newborns with less risk of passing the virus to them.

VOA: special.2009.07.29

Their work could give infected mothers in the developing world a new way to prevent the spread of the AIDS virus to their newborn babies.

VOA: special.2010.05.24

Most healthy people infected with the virus show no signs.

VOA: special.2009.05.26

Food production increased. Now,rinderpest expert John Anderson calls the end of the disease "the biggest achievement in veterinary history" Officials say they must still decide where to keep some of the virus and infected tissue for future research.

VOA: special.2010.11.02

An estimated 1,000 people die in South Africa each day from the virus and another 1,000 new victims are infected.

VOA: standard.2009.12.02

UNAIDS says about 24 percent of the adult population, aged 15 to 49, is infected with the AIDS virus.

VOA: standard.2010.05.10

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

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

Many people can live with the virus and never get sick, but 25 percent of those infected eventually develop severe liver damage or cancer.

VOA: standard.2010.07.26

The H1N1 flu virus has infected hundreds of thousands of people, raising fears around the world.

VOA: standard.2009.12.18

"Three hundred and fifty million human beings in the world are infected with Hepatitis-B virus.

VOA: standard.2010.02.16

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

Three hundred million people in the world are infected with Hepatitis-C virus.

VOA: standard.2010.02.16