    Senterice i: In 2002 j:the’ West-Nile virus. infected  4,000 people ‘and took 28a lives.-ii the’ United  States |    Seittence! 2: in contrast ; he said’, West ‘ile, virus  made 4,156 people ill and killed '284"in-the- United  States and Caniida Jast year ;    