San Francisco: Two people with the coronavirus died in California as much as three weeks before the US reported its first death from the disease in late February a gap that a top health official said may have led to delays in issuing stay-at-home orders in the nation’s most populous state.
Dr Sara Cody, health director in Northern California’s Santa Clara County, on Wednesday said the deaths were missed because of a scarcity of testing and the federal government’s limited guidance on who should be tested.
The infections in the two patients were confirmed by way of autopsy tissue samples that were sent to the Centers for Disease Control and Prevention for analysis. The county coroner’s office received the results on Tuesday, officials said.
“If we had had widespread testing earlier and we were able to document the level of transmission in the county, if we had understood then people were already dying, yes, we probably would have acted earlier than we did, which would have meant more time at home,” Cody said.
In the wake of the disclosure, Governor Gavin Newsom said he has directed coroners throughout the state to take another look at deaths as far back as December to help establish more clearly when the epidemic took hold in California.
He declined to say whether the two newly recognised deaths would have changed his decisions about when to order a shutdown. He imposed a statewide one in late March.
Officials said the two Santa Clara County patients died at home a 57-year-old woman on February 6 and a 69-year-old man on February 17 and that neither had travelled out of the country to a coronavirus outbreak area. The epidemic emerged in the Chinese city of Wuhan in late December.
Family members identified the woman as Patricia Dowd of San Jose, a manager at a semiconductor company who became sick in late January with flu-like symptoms.
She appeared to recover and was working from home the day she died. Her daughter found her, the Los Angeles Times reported.
Dowd travelled to various countries several times a year and had planned to visit China later in the year, her brother-in-law, Jeff Macias, told the paper.
Where did this come from if it wasn’t her traveling? Macias said. Patricia may not be the first. It’s just the earliest we have found so far.
Let’s keep looking so we know the extent of it, he said of the virus. That’s the greater good, for everyone else and my family included.
The first known death from the virus in the US was reported on February 29 in Kirkland, Washington, a Seattle suburb. Officials later attributed two February 26 deaths to the virus.
The two newly reported deaths show that the virus was spreading in California well before officials realized it and that outbreaks were underway in at least two parts of the country at about the same time.
It shifts everything weeks earlier, extends geographic involvement, (and) further shows how our inability to test let this outbreak loose, said Dr Eric Topol, head of the Scripps Research Translational Institute in San Diego, in an email.
Because it can take one or two weeks between the time people get infected and when they get sick enough to die, the February 6 death suggests the virus was circulating in California in late January, if not earlier.
Previously, the first infection reported anywhere in the U.S. was in the Seattle area on January 21.
On March 17, authorities across the San Francisco Bay Area, Santa Clara County included, confined nearly 7 million people to their homes for all but essential tasks and exercise in what was at the time the most aggressive measure taken against the outbreak in the US.
Three days later, California put all 40 million of its residents under a near-lockdown.
What the newly reported deaths show “is that we had community transmission probably to a significant degree far earlier than we had known,” Cody said. And that indicates that the virus was probably introduced and circulating in our community, again, far earlier than we had known.”
Thousands of travellers from China and other affected regions entered the US before travel bans and airport screenings were put in place by the Trump administration in mid- and late January. Lack of widespread testing meant the country was flying blind to the true number of infections.
County officials said the tissue samples from the two patients were sent to the CDC in mid-March. CDC officials did not immediately respond to questions about why it took a month to come back with the findings.
Dr Charles Chiu, a researcher at the University of California at San Francisco who has been looking at genetic information from virus samples from patients, said it appears that the coronavirus was most likely introduced into the US by travellers from China and that it turned up independently in Santa Clara County and Washington state.
Cody said the two deaths in California may have been written off as the flu because there were significant numbers of influenza cases at the time and it “had been extraordinarily difficult to pick out what was influenza and what was COVID”.