Pregnant & Breastfeeding Women Who Get the COVID-19 Vaccine Are Protecting Their Infants, Research Suggests
Becky Cummings, who got vaccinated in December, snuggles her newborn, Clark, while he takes a nap.
Becky Cummings had multiple reasons to get vaccinated against COVID-19 while tending to her firstborn, Clark, who arrived in September 2020 at 27 weeks.
The 29-year-old intensive care unit nurse in Greensboro, North Carolina, had witnessed the devastation day in and day out as the virus took its toll on the young and old. But when she was offered the vaccine, she hesitated, skeptical of its rapid emergency use authorization.
Exclusion of pregnant and lactating mothers from clinical trials fueled her concerns. Ultimately, though, she concluded the benefits of vaccination outweighed the risks of contracting the potentially deadly virus.
"Long story short," Cummings says, in December "I got vaccinated to protect myself, my family, my patients, and the general public."
At the time, Cummings remained on the fence about breastfeeding, citing a lack of evidence to support its safety after vaccination, so she pumped and stashed breast milk in the freezer. Her son is adjusting to life as a preemie, requiring mother's milk to be thickened with formula, but she's becoming comfortable with the idea of breastfeeding as more research suggests it's safe.
"If I could pop him on the boob," she says, "I would do it in a heartbeat."
Now, a study recently published in the Journal of the American Medical Association found "robust secretion" of specific antibodies in the breast milk of mothers who received a COVID-19 vaccine, indicating a potentially protective effect against infection in their infants.
The presence of antibodies in the breast milk, detectable as early as two weeks after vaccination, lasted for six weeks after the second dose of the Pfizer-BioNTech vaccine.
"We believe antibody secretion into breast milk will persist for much longer than six weeks, but we first wanted to prove any secretion at all after vaccination," says Ilan Youngster, the study's corresponding author and head of pediatric infectious diseases at Shamir Medical Center in Zerifin, Israel.
That's why the research team performed a preliminary analysis at six weeks. "We are still collecting samples from participants and hope to soon be able to comment about the duration of secretion."
As with other respiratory illnesses, such as influenza and pertussis, secretion of antibodies in breast milk confers protection from infection in infants. The researchers expect a similar immune response from the COVID-19 vaccine and are expecting the findings to spur an increase in vaccine acceptance among pregnant and lactating women.
A COVID-19 outbreak struck three families the research team followed in the study, resulting in at least one non-breastfed sibling developing symptomatic infection; however, none of the breastfed babies became ill. "This is obviously not empirical proof," Youngster acknowledges, "but still a nice anecdote."
Leaps.org inquired whether infants who derive antibodies only through breast milk are likely to have a lower immunity than infants whose mothers were vaccinated while they were in utero. In other words, is maternal transmission of antibodies stronger during pregnancy than during breastfeeding, or about the same?
"This is a different kind of transmission," Youngster explains. "When a woman is infected or vaccinated during pregnancy, some antibodies will be transferred through the placenta to the baby's bloodstream and be present for several months." But in the nursing mother, that protection occurs through local action. "We always recommend breastfeeding whenever possible, and, in this case, it might have added benefits."
A study published online in March found COVID-19 vaccination provided pregnant and lactating women with robust immune responses comparable to those experienced by their nonpregnant counterparts. The study, appearing in the American Journal of Obstetrics and Gynecology, documented the presence of vaccine-generated antibodies in umbilical cord blood and breast milk after mothers had been vaccinated.
Natali Aziz, a maternal-fetal medicine specialist at Stanford University School of Medicine, notes that it's too early to draw firm conclusions about the reduction in COVID-19 infection rates among newborns of vaccinated mothers. Citing the two aforementioned research studies, she says it's biologically plausible that antibodies passed through the placenta and breast milk impart protective benefits. While thousands of pregnant and lactating women have been vaccinated against COVID-19, without incurring adverse outcomes, many are still wondering whether it's safe to breastfeed afterward.
It's important to bear in mind that pregnant women may develop more severe COVID-19 complications, which could lead to intubation or admittance to the intensive care unit. "We, in our practice, are supporting pregnant and breastfeeding patients to be vaccinated," says Aziz, who is also director of perinatal infectious diseases at Stanford Children's Health, which has been vaccinating new mothers and other hospitalized patients at discharge since late April.
Earlier in April, Huntington Hospital in Long Island, New York, began offering the COVID-19 vaccine to women after they gave birth. The hospital chose the one-shot Johnson & Johnson vaccine for postpartum patients, so they wouldn't need to return for a second shot while acclimating to life with a newborn, says Mitchell Kramer, chairman of obstetrics and gynecology.
The hospital suspended the program when the Food and Drug Administration and the Centers for Disease Control and Prevention paused use of the J&J vaccine starting April 13, while investigating several reports of dangerous blood clots and low platelet counts among more than 7 million people in the United States who had received that vaccine.
In lifting the pause April 23, the agencies announced the vaccine's fact sheets will bear a warning of the heightened risk for a rare but serious blood clot disorder among women under age 50. As a result, Kramer says, "we will likely not be using the J&J vaccine for our postpartum population."
So, would it make sense to vaccinate infants when one for them eventually becomes available, not just their mothers? "In general, most of the time, infants do not have as good of an immune response to vaccines," says Jonathan Temte, associate dean for public health and community engagement at the University of Wisconsin School of Medicine and Public Health in Madison.
"Many of our vaccines are held until children are six months of age. For example, the influenza vaccine starts at age six months, the measles vaccine typically starts one year of age, as do rubella and mumps. Immune response is typically not very good for viral illnesses in young infants under the age of six months."
So far, the FDA has granted emergency use authorization of the Pfizer-BioNTech vaccine for children as young as 16 years old. The agency is considering data from Pfizer to lower that age limit to 12. Studies are also underway in children under age 12. Meanwhile, data from Moderna on 12-to 17-year-olds and from Pfizer on 12- to 15-year-olds have not been made public. (Pfizer announced at the end of March that its vaccine is 100 percent effective in preventing COVID-19 in the latter age group, and FDA authorization for this population is expected soon.)
"There will be step-wise progression to younger children, with infants and toddlers being the last ones tested," says James Campbell, a pediatric infectious diseases physician and head of maternal and child clinical studies at the University of Maryland School of Medicine Center for Vaccine Development.
"Once the data are analyzed for safety, tolerability, optimal dose and regimen, and immune responses," he adds, "they could be authorized and recommended and made available to American children." The data on younger children are not expected until the end of this year, with regulatory authorization possible in early 2022.
For now, Vonnie Cesar, a family nurse practitioner in Smyrna, Georgia, is aiming to persuade expectant and new mothers to get vaccinated. She has observed that patients in metro Atlanta seem more inclined than their rural counterparts.
To quell some of their skepticism and fears, Cesar, who also teaches nursing students, conceived a visual way to demonstrate the novel mechanism behind the COVID-19 vaccine technology. Holding a palm-size physical therapy ball outfitted with clear-colored push pins, she simulates the spiked protein of the coronavirus. Slime slathered at the gaps permeates areas around the spikes—a process similar to how our antibodies build immunity to the virus.
These conversations often lead hesitant patients to discuss vaccination with their husbands or partners. "The majority of people I'm speaking with," she says, "are coming to the conclusion that this is the right thing for me, this is the common good, and they want to make sure that they're here for their children."
CORRECTION: An earlier version of this article mistakenly stated that the COVID-19 vaccines were granted emergency "approval." They have been granted emergency use authorization, not full FDA approval. We regret the error.
Announcing Our First Short Story Contest (With Prizes!)
A laptop and notepad waiting for a writer.
Leapsmag is all about high-quality journalism and expert commentary. So you may be wondering, why are we hosting a fiction contest?
The answer is that some of the most visionary ideas for the future of humanity and technology first emerged in fiction, from Jules Verne's prescient novels about space, air, and underwater travels in the 19th century, to Arthur C. Clarke's prediction of satellite communications in 1945, to Isaac Asimov's exploration of robot ethics in the 1950s, to William Gibson's depiction of "cyberspace" in 1982.
But speculative fiction writers don't only anticipate big breakthroughs; they also care about probing the societal, personal, and moral impacts of new technology.
Will the next astute observation come in the form of a short story for leapsmag? Let's find out!
ABOUT THE CONTEST:
The Prompt:
Explore a big moral question or a new opportunity raised by an emerging technology today, in the form of an original, previously unpublished piece of fiction of up to 3000 words.
The Rules:
Submissions must be received by midnight EST on September 15th, 2018. Send your story as a double-spaced attachment in size 12 Times New Roman font to kira@leapsmag.com. Include your name and a short bio. It is free to enter, and authors retain all ownership of their work. Upon submitting an entry, the author agrees to grant leapsmag one-time nonexclusive publication rights.
All submissions will be judged by the Editor-in-Chief on the basis of insightfulness, originality, quality of storytelling, and relevance to the prompt. The Contest is open to anyone around the world of any age, except for the friends and family of leapsmag staff and associates.
The winners will be announced by October 15th, 2018.
The Prizes:
Grand Prize: $500, publication of your story on leapsmag, and promotion on our social media channels.
First Runner-Up: $100 and a shout-out on our social media channels.
Good luck!
Kira Peikoff was the editor-in-chief of Leaps.org from 2017 to 2021. As a journalist, her work has appeared in The New York Times, Newsweek, Nautilus, Popular Mechanics, The New York Academy of Sciences, and other outlets. She is also the author of four suspense novels that explore controversial issues arising from scientific innovation: Living Proof, No Time to Die, Die Again Tomorrow, and Mother Knows Best. Peikoff holds a B.A. in Journalism from New York University and an M.S. in Bioethics from Columbia University. She lives in New Jersey with her husband and two young sons. Follow her on Twitter @KiraPeikoff.
Kim Kardashian's recent Instagram post promoting a morning sickness medication she had never tried.
Where would you turn if you wanted the best advice about trying a new drug? A doctor with years of specialized training? A website with opinions from leading experts in the field? Maybe a review article by a trustworthy medical reporter. Or, maybe even go right to the source — an article about the drug in the peer-reviewed medical literature.
Or you could choose to get advice from someone whose education ended with high school and who almost certainly has had no training in pharmacology or scientific methodology. In America the answer is, sadly, the high school graduate if he or she is a huge celebrity.
Kardashian appears to have blessed a drug she never used and had no basis to endorse.
Drug manufacturers know this. They turn to celebrities, no matter how ignorant, ill-informed, money grubbing or air-headed, to pitch their goods directly to you on TV and the internet.
The latest example of this reliance on the utterly unqualified is the use of the surgically reengineered, reality show TV star Kim Kardashian to endorse a pill for women suffering from morning sickness during pregnancy. Kim, whose science training, whatever it was, ended when she graduated California's Marymount high school, recently offered this assessment of the medication:
"You know how sick I was while pregnant; I could barely get out of bed. That was before I found a safe & effective med to treat my morning sickness when diet & lifestyle changes didn't help. I hear there's a new formulation of the drug combination I took that's made to work faster & longer. If you're pregnant & feeling sick & changing your diet & lifestyle doesn't work, ask your doctor about Bonjesta® (doxylamine succinate/pyridoxine HCl). Most common side effect is drowsiness. Bonjesta.com for info."
She appears to have blessed a drug she never used and had no basis to endorse. And whether she got all the possible important side effects out there is not clear. In 2015, her internet post lauding another morning sickness drug, Diclegis, made by the same company, Duchesnay, now pushing Bonjesta, earned her $500,000 and Duchesnay a warning letter from the FDA for false and misleading advertising. Duchesnay dealt with the FDA and went on its merry way coming up with new meds relying on confirmation of their value by Kim.
Artificial demand creates more expense downstream for insurers, payer programs, and patients.
It seems pretty likely she was handsomely paid for her kind words about Bonjesta--payment that, if it occurred, is not disclosed in her endorsement or in most commercials in which celebrities tout drugs, vaccines and devices.
Legislators and patients often wonder why the cost of drugs in America is so high relative to the rest of the world. Well, one reason is the rest of the world does not tolerate direct-to-consumer ads aimed at ginning up demand when touted by actors, soap opera stars, sports stars, reality tv icons, quiz show hosts and others selling their fame so you will use a company's drug. Increasing the demand through celebrity endorsement allows companies to jack up their prices. Duchesnay did just that! Artificial demand creates more expense downstream for insurers, payer programs, and patients.
We treat marketing drugs on a par with marketing cosmetics, dishwashers, and fast food. And we get what Kim and other media celebs are paid for: useless information from unqualified sources who can grab eyeballs and get you to pester your doctor about what your idols say works.