111.   State health officials are trying to stop flies from spreading by sprinkling piles of carcasses with insecticides that kill maggots.

112.   Spread by contaminated water and food.

113.   Spread by insects.

114.   State health officials are trying to stop flies from spreading by sprinkling piles of carcasses with insecticides that kill maggots, Reese said.

115.   Terrorists could try to spread anthrax by spraying it or releasing into a ventilation system, experts say.

116.   The disease spreads by bodily fluids, including blood and vomit, and many who have cared for the sick have become infected.

117.   The disease can be prevented from spreading by isolating sufferers and stopping them traveling, said Heymann.

118.   The disease is easily transmitted by wind, people and vehicles, and can spread by contaminated hay, water and manure.

119.   The disease, which is spread by mosquitoes and can be fatal if untreated, is generally confined to the remote Amazon jungle region.

120.   The polymer could guard against infections commonly spread by sneezes and dirty hands, said Joerg Tiller of Massachusetts Institute of Technology.