Most do not spread malaria. Some of the insects have disease-fighting systems that kill Plasmodium.

VOA: special.2009.12.22

Most do not spread malaria. Some have immune systems that kill Plasmodium.

VOA: special.2009.12.07

Some scientists have said the government should cancel large sporting events and close schools to try to stop the spread of the respiratory disease.

VOA: standard.2009.05.30

When those tensions spread to Key West, and some factories were burned, Tampa's leaders invited its biggest cigar maker, Don Vicente Martinez Ybor, to relocate there.

VOA: standard.2010.04.15

Some pilgrims wore protective masks to prevent the spread of germs.

VOA: standard.2009.11.29

"Obviously there is a bit of a spread between those two figures and it suggests the possibility of some political problems for the president if he should not take the military recommendation and that difference gets to be a big issue,".

VOA: standard.2009.10.09