Tag: antibody levels
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
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
How Many COVID Vaccine Doses Do Little Kids Need?
After months and months of being told to wait, then wait, then wait some more, parents eager to vaccinate their littlest kids against COVID-19 have been gifted some good and very confusing news. Yesterday, after weeks of weird and cryptic waffling, Pfizer kick-started the process of requesting an emergency use authorization from the FDA for their infant-and-toddler COVID-19 vaccine; if the agency’s advisory-panel meeting, scheduled for the 15th, goes smoothly, the under-5 shots could be available as a two-dose series
Omicron Is Our Past Pandemic Mistakes on Fast-Forward
With Omicron, everything is sped up. The new variant is spreading fast and far. At a time when Delta was already sprinting around the country, Omicron not only caught up but overtook it, jumping from an estimated 13 to 73 percent of U.S. cases in a single week. We have less time to make decisions and less room to course-correct when they are wrong. Whereas we had months to prepare for Delta in the U.S., we’ve had only weeks
Our First Preview of How Vaccines Will Work Against Omicron
And there it is, the first trickle of data to confirm it. In the eyes of vaccinated immune systems, Omicron looks like a big old weirdo—but also, a kind of familiar one. That’s the verdict served up by several preliminary studies and press releases out this week, describing how well antibodies, isolated from the blood of vaccinated people, recognize and sequester the new variant in a lab. The news is … well, pretty much the middling outcome that experts have
COVID-19 Vaccine Success Could Be Measured With One Number
When Kishana Taylor welcomes her twins into the world this December, she’ll be pretty confident that they won’t be carrying the virus that causes rubella, an infection that can be disastrous in infants. Thanks to a vaccine she received as a child, Taylor, a virologist at Carnegie Mellon University, is still immune to the pathogen decades later.
She was able to confirm that in June through a simple test that searched her blood for antibodies that recognize the rubella virus,