Getting COVID-19 while pregnant could cause brain development delays in boys, study finds


Boys' brain development in the womb may be delayed if the mother contracts COVID-19 while pregnant, a new study published in the Journal of the American Medical Association Network Open finds. The research showed that boys born to people who had COVID-19 during pregnancy were twice as likely to be diagnosed with a developmental disorder in their first 18 months of life, NPR reports. Baby girls did not show the same results.
"Male fetuses are known to be more vulnerable to maternal infectious exposures during pregnancy," according to the study's lead author Andrea Edlow. However, there is only a slight increase in risk, and "most children of moms who have COVID during pregnancy won't have neurodevelopmental consequences even if there is some increase in risk," explains study co-author Roy Perlis.
Importantly, this is still a developing research topic, and a study published in the same journal had a conflicting result claiming "no association was found between mild or asymptomatic maternal SARS-CoV-2 infection during pregnancy and infant cognition, language, or motor development." In order to truly assess whether there are long term-impacts, more research should be done assessing milestones across early childhood, USA Today writes.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
"There is growing evidence linking prenatal maternal infection and inflammation and risk for later neurodevelopmental disorders like ADHD, schizophrenia," maternal-infant health expert Catherine Limperopoulos told USA Today. This is due to the body's immune response to the infection, producing proteins to fight infections called cytokines. These proteins can cause inflammation in fetal brains. "There is a link between maternal immune activation, changes in gene expression in the brain, changes in brain development, and long-lasting changes in behaviors," remarked Kim McAllister, a professor at the University of California, Davis to NPR.
"All we can hope to detect at this point are more subtle sorts of things like delays in language and speech, and delays in motor milestones," Perlis said.
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Devika Rao has worked as a staff writer at The Week since 2022, covering science, the environment, climate and business. She previously worked as a policy associate for a nonprofit organization advocating for environmental action from a business perspective.
-
The First Homosexuals: The Birth of a New Identity, 1869–1939
Feature Wrightwood 659, Chicago, through Aug. 2
-
Why the FDA wants to restrict kratom-related products
In the Spotlight The compound is currently sold across the United States
-
Israeli NGOs have started referring to Gaza as a 'genocide' — will it matter?
TODAY'S BIG QUESTION For the first time since fighting began in 2023, two Israeli rights groups have described their country's actions in the Gaza Strip as 'genocide' while famine threatens the blockaded Palestinian territory
-
Scientists are developing artificial blood for use in emergencies
Under the radar It could aid in global blood shortages
-
Babies born using 3 people's DNA lack hereditary disease
Under the Radar The method could eliminate mutations for future generations
-
Not just a number: how aging rates vary by country
The explainer Inequality is a key factor
-
Children's health has declined in the US
The Explainer It's likely a sign of larger systemic issues
-
Measles cases surge to 33-year high
Speed Read The infection was declared eliminated from the US in 2000 but has seen a resurgence amid vaccine hesitancy
-
Kennedy's vaccine panel signals skepticism, change
Speed Read RFK Jr.'s new vaccine advisory board intends to make changes to the decades-old US immunization system
-
Climate change can impact our gut health
Under the radar The gastrointestinal system is being gutted
-
Kennedy ousts entire CDC vaccine advisory panel
speed read Health Secretary RFK Jr. is a longtime anti-vaccine activist who has criticized the panel of experts