Covid-19 vaccines in pregnancy not linked to miscarriage or stillbirth

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A study has confirmed that the most popular covid-19 vaccine is safe in pregnant women.

During the Pandemic, the risks of catching covid-19 or being vaccine against it have been discussed. The covid-19 vaccine was not available to pregnant people in the UK until April 2021.

People are now encouraged to get a vaccine against the coronaviruses. In the UK, only 3 in 5 women who gave birth in January 2022.

The British Columbia Children's Hospital Research Institute in Canada conducted a survey of nearly 200,000 people between December 2020 and November 2021. The coronaviruses were dominant in Canada over the last year.

The participants from seven Canadian provinces self- reported any health issues they may have experienced after receiving the first or second dose of a Pfizer/BioNTech or Moderna coronaviruses vaccine. Only a small number of pregnant women in Canada were immunised with the Oxford/AstraZeneca vaccine, which is a modified adenoviruses vaccine.

A group of pregnant people, unvaccinated pregnant people and people who were not pregnant were grouped together.

The University of Toronto in Canada is a co-author of the study that looked at the vaccine's effects on pregnant women. She says the study didn't ask if the vaccine protects pregnant people from severe covid-19.

In the seven days after the first vaccine dose, 1.5 percent of the 5597 pregnant people reported a stillbirth or miscarriage, which led to hospitalisation in some cases. The rate of unvaccinated pregnant people who had a stillbirth or miscarriage in the seven days before they were surveyed was 2.1 percent.

The hospitalisation rate of the non-pregnant but vaccine participants was compared by the researchers. Only 0.6 per cent of them were admitted for any reason after their first vaccine dose.

Women who are pregnant worry about the baby the most. We did not find any adverse events associated with the vaccine for pregnant people.

Vaginal bleeding, abnormal foetal heart rate and reduced foetal movement were not reported by any of the participants. The rate of these events was low, but they were still comparable to those who were pregnant.

Sarah Stock at the University of Edinburgh says that there is no evidence of safety concerns associated with vaccinations in pregnant women.

Less serious health issues, such as muscle pain and headaches, were reported by just 4% of pregnant people in the seven days after their first vaccine dose, but rose to 7.5 per cent in the week after a second vaccine.

In the week after the first dose, 6.3 per cent of the non-pregnant people reported mild side effects, increasing to 11.3 per cent after the second dose.

It's not clear why pregnant people had less mild symptoms after being vaccined. The immune system changes when someone is pregnant.

The World Health Organization, the UK's National Health Service and the Centers for Disease Control and Prevention recommend that pregnant women get vaccine against the coronaviruses.

There have been studies showing the risks of catching covid-19 in pregnant women. A study published in July claims that having covid-19 in late pregnancy increases the risk of premature birth.

People who are pregnant with covid-19 are more likely to have a heart problem than people who aren't pregnant.

The journal's title is The Lancet Infectious Diseases.