Tag: COVID vaccines
Is COVID Immunity Hung Up on Old Variants?
In the two-plus years that COVID vaccines have been available in America, the basic recipe has changed just once. The virus, meanwhile, has belched out five variants concerning enough to earn their own Greek-letter names, followed by a menagerie of weirdly monikered Omicron subvariants, each seeming to spread faster than the last. Vaccines, which take months to reformulate, just can’t keep up with a virus that seems to reinvent itself by the week.
But SARS-CoV-2’s evolutionary sprint might not be
COVID Science Is Moving Backwards
Paul Sax is an infectious-disease physician and professor at Harvard Medical School. Even so, when Sax’s kids asked him whether they should get the updated COVID vaccine this fall, he wasn’t really sure what to tell them. His two children are in their 20s, healthy, and at no special risk of complications from disease. Each had recovered from COVID, and thus, he reasoned, had extra immunity on top of what they’d gotten from their prior shots. Another injection would
The Masks We’ll Wear in the Next Pandemic
On one level, the world’s response to the coronavirus pandemic over the past two and half years was a major triumph for modern medicine. We developed COVID vaccines faster than we’d developed any vaccine in history, and began administering them just a year after the virus first infected humans. The vaccines turned out to work better than top public-health officials had dared hope. In tandem with antiviral treatments, they’ve drastically reduced the virus’s toll of severe illness and death, and
New COVID Vaccines Will be Ready This Fall. America Won’t.
Not so long ago, America’s next COVID fall looked almost tidy. Sure, cases might rise as the weather chills and dries, and people flock indoors. But Pfizer and Moderna were already cooking up America’s very first retooled COVID vaccines, better matched to Omicron and its offshoots, and a new inoculation campaign was brewing. Instead of needing to dose up three, four, even five times within short order, perhaps Americans could get just one COVID shot each year, matched roughly to
Why Kids’ COVID Vaccines Aren’t Performing Like Adults’
Last Friday, Lakshmi Ganapathi’s son turned 5, and finally became eligible for his first Pfizer COVID shot. Ganapathi’s family had been anticipating that moment for more than a year, yet as of late, she can’t help but feel the slightest bit deflated. At first, the COVID vaccines’ trickle down the age brackets felt worth the wait because the shots were doing such a stellar job at blocking symptoms. The clinical trials kept delivering knockout results: 94 percent efficacy, 95 percent
A Stress Test for America’s New COVID Plan Is Coming
At this very moment, the United States, as a whole, remains in its legit pandemic lull. Coronavirus case counts and hospitalizations are lower than they’ve been since last summer. There’s now a nice, chonky gap between us and January’s Omicron peak.
And yet. Outbreaks have erupted across Asia. Massive swaths of Europe, including the United Kingdom—America’s best pandemic bellwether for much of 2021—are firmly in the grip of a more transmissible Omicron subvariant called BA.2 that’s been simmering stateside for
Vaccinating Kids Has Never Been Easy
In September 1957—two years after church bells rang in celebration of the new polio vaccine, two years after people rejoiced in the streets, two years after Americans began lining up for their shots—the proportion of children fully vaccinated against polio remained at about 50 percent.
Supply was not the problem. Nor were doubts about the vaccine’s safety or efficacy, concluded a report from around that time by the National Foundation for Infantile Paralysis, now known as the March of Dimes,
The Pandemic Isn’t Over for Immunocompromised People
When the coronavirus pandemic began, Emily Landon thought about her own risk only in rare quiet moments. An infectious-disease doctor at the University of Chicago Medicine, she was cramming months of work into days, preparing her institution for the virus’s arrival in the United States. But Landon had also recently developed rheumatoid arthritis—a disease in which a person’s immune system attacks their own joints—and was taking two drugs that, by suppressing said immune system, made her more vulnerable to pathogens.