A new study involving in vitro fertilization patients in the U.S. found that those who received Pfizer or Moderna COVID-19 vaccines had the same fertility and pregnancy outcomes as unvaccinated patients – findings that researchers say provide further evidence that mRNA vaccines are safe for those considering pregnancy.
The study, published Tuesday in the journal Obstetrics & Gynecology, noted that while data on vaccine safety in pregnancy is increasing, vaccination rates amongst pregnant people remain low.
Previous studies have found no associations with COVID-19 mRNA vaccines with markers of fertility, including embryo development, but were from smaller cohorts.
Researchers analyzed data collected from nearly 3,000 patients who underwent IVF at a single academic centre.
One cohort was fully vaccinated with two doses of the Pfizer or Moderna vaccine 14 days or more before the start of their medications associated with IVF, and there was a control group of unvaccinated patients undergoing the same IVF procedures and taking the same medications during the same time period.
Both cohorts of patients had ultrasounds and weekly monitoring to determine whether a pregnancy had resulted from the IVF treatment, as well as screening for COVID-19.
The study found no differences between the vaccinated and unvaccinated cohorts of patients in all categories of measuring successful IVF implantation and early pregnancy.
The study took into account age, body mass index, hormone levels, gravidity (sum of all pregnancies in an individual, including live births and pregnancies that terminated at less than six months or did not result in a live birth), parity (pregnancies that resulted in delivery at more than six months gestation, either a live birth or still birth) and stimulation (second-stage IVF treatment to harvest mature eggs) type.
“Our data contribute to the ever-increasing evidence that COVID-19 vaccines to not negatively affect fertility or pregnancy,” the researchers wrote.
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New York’s highest court on Thursday overturned Harvey Weinstein’s 2020 rape conviction, finding the judge at the landmark #MeToo trial prejudiced the ex-movie mogul with improper rulings, including a decision to let women testify about allegations that weren’t part of the case.
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A dozen mayors from around Metro Vancouver say federal Attorney General and Justice Minister Arif Virani should deny parole for notorious B.C. serial killer Robert Pickton, and reassess the parole and sentencing system for 'prolific offenders and mass murderers.'
During a special winner celebration near their hometown, Doug and Enid shared the story of how they discovered they were holding a Lotto Max ticket worth $70 million and how they kept this huge secret for so long.
A reluctant Donald Trump returned to a New York City courtroom Thursday as his hush money trial resumed at the same time that the U.S. Supreme Court hears arguments in Washington over whether he should be immune from prosecution for actions he took during his time as president.
A Sydney bishop who was stabbed repeatedly in an alleged extremist attack blamed on a teenager has backed X Corp. owner Elon Musk's legal bid to overturn an Australian ban on sharing graphic video of the attack on social media.
A ship travelling in the Gulf of Aden came under attack Thursday, officials said, the latest assault likely carried out by Yemen's Houthi rebels over Israel's ongoing war on Hamas in the Gaza Strip.
Iran's judiciary confirmed the death sentence of well-known Iranian rapper Toomaj Salehi but added that he is entitled to a sentence reduction, state media reported on Thursday.
Ukraine worked Thursday to get much-needed new supplies of weapons and ammunition from a huge U.S. aid package to its eastern front line, where Russia was pressing forward with its efforts to take ground from outnumbered and outgunned troops.
A West Virginia father is getting some sense of closure after authorities found the remains of his young daughter and her mother following a deathbed confession from the man believed to have fatally shot them nearly two decades ago.
Prime Minister Justin Trudeau is accusing Conservative Leader Pierre Poilievre of welcoming 'the support of conspiracy theorists and extremists,' after the Conservative leader was photographed meeting with protesters, which his office has defended.
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The Canadian Medical Association asserts the Liberals' proposed changes to capital gains taxation will put doctors' retirement savings in jeopardy, but some financial experts insist incorporated professionals are not as doomed as they say they are.
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Nine-year-old Carter Vigh was having a great day last July 11, visiting a waterpark, enjoying a picnic lunch and playing soccer with other kids at a day camp run by his mother, Amber Vigh.
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During a special winner celebration near their hometown, Doug and Enid shared the story of how they discovered they were holding a Lotto Max ticket worth $70 million and how they kept this huge secret for so long.
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