Argentina is experiencing a sharp rise in hantavirus cases as the country grapples with one of its largest outbreaks of the rare but deadly virus in years. And in just about a month, thousands of people from Argentina are heading to the United States for one of sports' biggest moments. Most people hadn’t heard of hantavirus until about a week ago when an outbreak on a cruise ship resulted in eight cases and several deaths. Since then, cases have been identified in several countries and