The viruses appear to harm the bees' ability to use their genetic material to produce proteins needed to fight infections.

VOA: special.2009.09.15

Supporters of one kind of G.M.cotton, for example,note evidence that it can help a plant resist insects and viruses.

VOA: special.2010.03.23

The viruses appear to harm the bees' ability to use their genes to produce proteins needed to fight infections.

VOA: special.2009.09.22

During the last flu season, twelve percent of H1N1 viruses tested in the United States were resistant to Tamiflu.

VOA: special.2009.03.04

The scientists found that the affected bees had a number of viruses from a group called picorna-like viruses.

VOA: special.2009.09.22

The experts noted conflicting results concerning a possible link between the disorder and a group of viruses known as murine leukemia viruses.

VOA: special.2011.01.18

Makers of the devices say they kill bacteria and viruses because they help to remove the wetness that germs need to survive.

VOA: special.2009.07.14

Evidence is increasing that common influenza viruses are becoming resistant to the main drug used to treat them.

VOA: special.2009.03.04

The studies also appear to show that environmental causes such as viruses or bacteria may be involved.

VOA: special.2009.01.06

Viruses change,or mutate, so flu vaccines must be reformulated each year to target the most common threats.

VOA: special.2009.03.04

But public health officials point out that flu viruses can return more aggressively after a few months.

VOA: special.2009.05.06

Common viruses or bacteria may also increase the chances that some people will develop the disease.

VOA: special.2009.01.06

Rod Curtis says that shows the importance of the new vaccine targeting both viruses at once.

VOA: special.2010.01.18

She is an expert in the development and genetics of immune deficiency viruses in primates.

VOA: special.2009.09.08