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Public health experts say neither virus poses an immediate threat to most Americans. But the trust deficit the viruses are exposing could be catastrophic when crisis arrives.

A sign in a window of a business asks customers to wear a mask to prevent the spread of Covid-19 as the nation marks the fifth anniversary of the pandemic on March 13, 2025 in New York City. | Spencer Platt/Getty Images

Eighteen Americans exposed to hantavirus are quarantining in Nebraska. An American medical missionary who tested positive for Ebola as part of an ongoing outbreak of over 600 suspected cases in Central Africa was flown to Germany for treatment.

And some Americans don’t trust what they’re hearing about either virus.