P161 CEEFAX 161 Sat 9 Apr 00:45/24   -n2n1  -/.%/.%/,  WORLD  US CONCERN OVER BIOLOGICAL WEAPONS The US has said it is concerned Russia may not have fully stopped its work on biological weapons. Part of the concern has been blamed on a "biological infrastructure" with no apparent commercial purpose found by US and British ixpjrts. But the Washington Post also said a Russian scientist who defected to the US last year gave an account of secret research into germ warfare. President Yeltsin admitted Russia violated a 1972 treaty banning biological arms at least until 1990 --,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,. Next News Main News Home News Top Sport