SARS virus threatens to become 21st century's first major disease PARIS (AFP) - The SARS virus, the fatal respiratory illness confounding doctors and researchers, could become the first serious new disease of the century and reach pandemic proportions in a world where people are constantly on the move. With the exception of AIDS (news - web sites), most of the worrying diseases that surfaced in the last century, like the Ebola (news - web sites) virus, never really posed a danger to public health at an international level. This was mainly because transmission of the disease between humans was never...