Global Times

Autopsies reveal pandemic timeline

Medical research shows US COVID-19 cases occurring as early as January

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Two people who died in California in early and mid-February have been confirmed through autopsies as coronaviru­s cases – weeks before the first reported COVID-19 fatality in the United States.

The deaths, on February 6 and February 17, push back the timeline for the entry of the virus on US soil, experts said.

Given what we know about how long it takes for the virus to kill people, the disease began to spread in the US sometime between early and mid-January. And the fact that it took astute health officials to carry out postmortem examinatio­ns on these selected cases in turn means that the overall death toll of 45,000 is likely well below the real number.

“Models of epidemic spread in the US will have to be adjusted to account for an earlier start date,” Jay Bhattachar­ya, a professor of medicine at Stanford University told AFP.

“This in turn should mean that the models will predict a larger number of current cases in the US now than they are currently predicting. How large an effect this will have on epidemic forecastin­g remains to be seen.”

The earliest death attributed to the coronaviru­s was previously thought to be on February 26 in Washington state – a man in his 30s who returned from

Wuhan and reported himself to authoritie­s after experienci­ng symptoms.

Sara Cody, the public health officer of Santa Clara County where the new autopsies were performed, told The Washington Post it was not yet known how the two people were infected, with officials unaware of any history of overseas travel.

This further reinforces that the virus was already circulatin­g in the community at a time that the Centers for Disease Control and Prevention (CDC) was continuall­y assuring the public that the threat posed by COVID-19 was “low.”

Another person who died in Santa Clara County on March 6 also had the disease caused by the coronaviru­s, the medical examiner-coroner said in a statement.

“These three individual­s died at home during a time when very limited testing was available only through the CDC,” the coroner said.

“Testing criteria set by the CDC at the time restricted testing to only individual­s with a known travel history and who sought medical care for specific symptoms.” The coroner said they expected to identify more coronaviru­s-related fatalities in Santa Clara.

A study this week led by Bhattachar­ya at Stanford indicated that the novel coronaviru­s was likely far more widespread than official figures suggest.

Blood samples taken from 3,300 volunteers in Santa Clara County showed that the true number of COVID-19 cases was at least 50 times higher than the number of confirmed infections in the county. Santa Clara was among the first areas in the US to tell residents to stay at home, ordering a shutdown from March 17.

On the other side of the country, researcher­s determined that the virus was spreading in New York City in February, and the predominan­t strain came from Europe.

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