As the world continues to monitor an outbreak of deadly hantavirus on a Dutch cruise ship off the West African coast, many on social media have wondered if the rare, rodent-borne illness could trigger the next global pandemic and reinstate Covid-era lockdowns . Researchers are tracing passengers who were potentially exposed to the virus in Georgia, California, Arizona , Virginia and Texas and in other countries around the world. But experts still say there is little reason to believe hantavirus - and even this rare strain - will spread widely. "The key to transmission is shedding virus in the presymptomatic and asymptomatic phase," Vincent Racaniello, Higgins Professor of Microbiology and Immunology at Columbia University, told Newsweek Wednesday . "Influenza and SARS-CoV-2 are very good at it. For hantavirus, the barrier is efficient human-to-human transmission," he said.…