About eighty percents of illnesses spread by food are still listed as having been caused by "unspecified agents."

VOA: special.2011.01.11

People around the world can prevent diseases spread by mosquitoes by removing standing water from their property.

VOA: special.2009.04.13

Bunchy top disease can spread from plant to plant and is also spread by aphids.

VOA: special.2009.09.21

The message also included links to information about diseases spread by sexual activity.

VOA: special.2009.02.03

Sleeping sickness is spread by the bite of the tsetse fly.

VOA: special.2010.04.07

The most important disease spread by mosquitoes is malaria.

VOA: special.2009.05.26

The disease is spread by tick bites.

VOA: special.2009.11.03

He said a lot of misinformation is being spread by critics of reform, adding that it is necessary to clear the air.

VOA: standard.2009.08.11

"What kind of a speech they're defending? The kind of speech,the hatred, the communal hatred, that is being spread by Mr.Varun Gandhi,".

VOA: standard.2009.03.28

Most infections are spread by heterosexual intercourse, with younger women and older men disproportionately affected.

VOA: standard.2009.04.04

The World Health Organization estimates that between 50,000 and 70,000 people in sub-Saharan Africa are infected with sleeping sickness, which is spread by the tsetse fly.

VOA: standard.2010.04.05

Sleeping sickness is spread by a parasite that infects the central nervous system and,if left untreated, moves to the spinal column and brain, resulting in mental confusion and eventual death.

VOA: standard.2010.04.05

"But it also should be an honest debate, not one dominated by willful misrepresentations and outright distortions, spread by the very folks who would benefit the most by keeping things exactly as they are,".

VOA: standard.2009.08.22

It said Congress had no right to help spread slavery by permitting it in the new western territories.

VOA: special.2009.03.12

Phase five is marked by human-to-human spread of the virus into at least two countries in the same area of the world.

VOA: special.2009.05.06

By this time, word of Brown's attack had spread to Charles Town, more than twelve kilometers away.

VOA: special.2009.06.25

By then, Whitman's fame had spread to many nations.

VOA: special.2009.04.12

"By going to phase six, what this would mean is that the spread of the virus is continued and that activity has become established in at least two regions of the world.

VOA: special.2009.06.10

(Sound) He said precautionary measures taken by Saudi health officials were responsible for containing the spread of the virus.

VOA: standard.2009.11.29

Thai authorities say they spread hate speech and lies and instigated violence during a two-month demonstration by thousands of protesters in Bangkok.

VOA: standard.2010.07.06

Most efforts to curb their spread have failed, and many people resort to killing the toads with poison gases or by freezing them.

VOA: standard.2010.02.07

So they pin up posters on election commission sponsored bulletin boards and spread their message by megaphones.

VOA: standard.2009.07.27

Dr.Strebel says the Millennium Development Goal aimed at reducing child mortality by two-thirds by 2015 will be missed if measles outbreaks continue to spread.

VOA: standard.2010.05.21

But the idea that traffic could be impeded by the spread of swine flu worries U.S.

VOA: standard.2009.04.30