Experts warn against virus variants as states reopen
Doctor: ‘We’re not invulnerable’
NEW YORK — As states lift mask rules, and ease restrictions on restaurants and other businesses because of falling case numbers, public health officials say authorities are overlooking potentially more dangerous COVID-19 variants quietly spreading through the U.S.
Scientists widely agree that the U.S. simply doesn’t have enough of a handle on the variants to roll back public health measures and is at risk of fumbling yet another phase of the pandemic after letting the virus rage through the country over the past year, killing nearly 500,000 people.
“Now is not the time to fully open up,” said Karthik Gangavarapu, a researcher at Scripps Research Institute whose team works closely with San Diego health officials to watch for mutant versions of the coronavirus. “We need to still be vigilant.”
Over the past two weeks, daily averages for both coronavirus cases and deaths have dropped by about half in the U.S., according to data from Johns Hopkins University. And, as of Wednesday, over 40 million people — about 12% of the population — had received at least one dose of a vaccine.
But experts, including Dr. Anthony Fauci and CDC Director Dr. Rochelle Walensky, say the downward trend could reverse itself if new variants take hold.
The problem, as experts see it, is that the U.S. has been slow to ramp up a rigorous genetic surveillance system to track the variants’ spread and measure how much of a foothold they have gained here.
“The fact of the matter is we’re kind of in the dark,” said Dr. Diane Griffin, who studies infectious diseases at Johns Hopkins. She said the variants are “probably widespread, even if we don’t know it.”
On Wednesday, the Biden administration announced it will spend $200 million for the CDC to triple its levels of genetic sequencing to identify mutations that might make the coronavirus more infectious or more deadly. Separately, Congress is considering a bill that would provide $1.75 billion for such work.
A more contagious, and possibly more deadly, variant that was first identified in Britain has been found in at least 42 states. Other variants first detected in South Africa and Brazil have been been reported across the U.S. in low numbers. The South Africa one is especially worrisome because of evidence it may diminish the effectiveness of the vaccines.
“We’re chasing a moving target. It’s changing a little too fast for comfort,” said Dr. Lucio Miele a geneticist at LSU Health Sciences in New Orleans. “We need to be proactive. We’re not invulnerable.”
Detecting variants — and knowing where and how widely they are spreading — could be critical to preventing another deadly wave of COVID-19 such as the one that overwhelmed hospitals this winter.
In Europe in late 2020, once surveillance began flagging variants such as the one that was causing cases to rage out of control and overwhelm hospitals in England, governments across the continent responded by imposing strict travel restrictions and lockdowns.
But, in the U.S., the emergence of variants has been met with a shrug among many state and local officials due to the overall drop-off in confirmed infections.
Florida, for example, has the country’s highest tally of cases of the British variant, according to the CDC. But state leaders, including Gov. Ron DeSantis, seem to have already moved on from the coronavirus.
When asked about the rise of new strains last week, DeSantis told reporters, “The media is worried about that, obviously. You guys really love that.”
Florida has repealed many restrictions and hosted 25,000 fans for the Super Bowl in Tampa and 30,000 spectators at the Daytona 500 a week later in what was the largest sporting event in the nation since the start of the pandemic.
Restrictions are also being eased in California, which is recovering from a COVID-19 surge that recently overran its hospital system. The state also has the country’s secondhighest case count of the British variant.