For the past two years, New York and New Jersey infectious disease experts have been laser focused on prep and training for the upcoming FIFA World Cup games — with 1.2 million visitors from around the world set to watch 48 teams battle it out on the pitch. Across the US, those numbers skyrocket to 6-7 million. And with that massive influx of foreign visitors comes the threat of infectious — and sometimes deadly — diseases, including viral hemorrhagic fevers, RSV, tuberculosis, measles, varicella, hepatitis A, typhoid, malaria, SARS, hantavirus and even “high consequence” diseases with high mortality rates, like cholera and Ebola. The matches at MetLife Stadium in Rutherford, N.J., will begin on June 13 and attract millions of fans from around the world. Getty Images A healthcare worker who volunteered in the Ebola response in Congo in 2019 gets decontaminated. REUTERS And then there are considerations for mass-casusalty events, like shootings.…