The U.S. swine industry has reached an encouraging milestone: four years without a single positive case of transmissible gastroenteritis virus (TGEV). According to the Swine Disease Reporting System, ...

The etiologic agent of SARS was identified as a new human coronavirus (CoV), order Nidovirales, family Coronaviridae, by the sequencing of its genome [1, 2] and by experimental infection of ...