71.   Wood spurge, E. amygdaloides var. robbiae, spreads by both roots and seed.

72.   Word spread by whispers and winks.

73.   Young weeds not only are easiest to remove but have yet to spread by seed or creeping roots.

74.   A new treatment still in the test-tube stage appears to make cancers wither and stop spreading by choking off their blood supply, researchers say.

75.   A new polymer coating holds the promise of guarding against infections commonly spread by bacteria lurking on things like telephones and door knobs, researchers say.

76.   A protracted heat wave is turning normally edible mushrooms poisonous and infecting swimmers with a mysterious itch spread by wild ducks.

77.   Anwar said the people should not listen to rumours spread by outside forces simply to create confusion or disrupt the economic system in Malaysia.

78.   Avian flu poses no health threat to humans, but the highly contagious disease be spread by people or vehicles that have visited contaminated farms.

79.   BSE is believed to spread by recycling meat and bones from infected animals back into cattle feed.

80.   But the disease can be prevented from spreading by quarantining monkeypox victims, he said.