A new Canadian study, recently published in the journal “ Lancet Infectious Diseases“, claims that pregnant women have less severe side effects after the Covid-19 vaccine than women who are not pregnant.
The Canadian National Vaccine Safety Network collected data from 191,360 vaccinated women aged 15 to 49 between December 2020 and November 2021.
According to the study, researchers asked participants to report ” important health events » after vaccination that were serious enough to cause them to miss school or work, to see a doctor or to change their life routines.
Of 5,597 pregnant participants, 4% reported a significant health problem within seven days of the first dose of an mRNA vaccine, following the second dose, 7.3% of 3,108 pregnant respondents reported having had noticeable side effects.
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However, among women who were not pregnant, 6.3% of 174,765 respondents reported a significant health problem after the first dose, and 11.3% of 10,254 participants said they felt sick after the second dose. dose.
Dr. Julie Bettinger, the paper’s lead author and researcher at British Columbia Children’s Hospital in Vancouver, says the findings are “unexpected” and warrant further investigation.
« Previous studies of other vaccines in pregnant women have mostly reported no significant differences in health events between pregnant and non-pregnant women – they have sometimes found higher rates during pregnancy“, she continued.
He added that further studies of mRNA vaccines for other diseases are needed to determine whether the reduction in side effects seen in pregnant women in this study is a feature of mRNA vaccines in general, or a specific characteristic of vaccines against Covid-19.
With MAP