Covid vaccine: Fertility and miscarriage claims fact-
checked
False and misleading claims that Covid-19 vaccines harm fertility and cause
miscarriages are still circulating online, against all the evidence.
Doctors are extremely cautious about what they recommend during pregnancy,
so the original advice was to avoid the jab.
But now, so much safety data has become available that this advice has changed and
the vaccine is now actively encouraged (as getting Covid can put a pregnancy at risk).
We have looked at some of the more persistent claims - and why they are wrong.
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A study shows the vaccine accumulating in the ovaries - False
This theory comes from a misreading of a Japanese study.
The study involved giving rats a much higher dose of vaccine than that given to humans
(1,333 times higher).
Only 0.1% of the total dose ended up in the animals' ovaries, 48 hours after injection.
Far more - 53% after one hour and 25% after 48 hours - was found at the injection site
(in humans, usually the arm). The next most common place was the liver
(16% after 48 hours), which helps get rid of waste products from the blood.
Monitoring data shows vaccines cause miscarriages - False
Some posts have highlighted miscarriages reported to vaccine-monitoring schemes,
including the Yellow Card scheme in the UK and the Vaccine Adverse Event Reporting
System (VAERS) in the US.
Anyone can report symptoms or health conditions they experience after being vaccinated.
Not everyone will choose to report, so this is a self-selecting database.
There were indeed miscarriages reported in these databases - they are unfortunately
common events - but this does not mean the jab caused them.
A study has found data showing the miscarriage rate among vaccinated people was
in line with the rate expected in the general population - 12.5%.作者: martina28043 時間: 2021-8-22 15:18
