As States Open Up, Health Experts Seek To Understand Coronavirus’s Early Silent Spread

Beachgoers at Port Hueneme Beach, California, on Thursday. Ventura County beaches and parks are scheduled to reopen this week with some restrictions.

Mark J. Terrill / AP

As health officials across the country try to slow the coronavirus pandemic, a growing body of evidence and research suggests the virus may have been silently spreading in different parts of the country far earlier than initially believed and officially reported.

Preliminary results from antibody testing in New York and Florida show that hundreds of thousands, if not millions of people, may have already contracted the virus. Similar, more controversial, surveys in California suggest wider spread than previously acknowledged.

And in the state’s Bay Area, health officials have now identified two coronavirus-related deaths that occurred in early February, meaning the first known death from the coronavirus in the U.S. occurred weeks earlier than previously believed.