The possible link between CCP virus vaccinations and menstrual changes should be investigated to clear up the doubts, a reproductive immunology lecturer from Imperial College London said.
In an editorial published on Thursday in the British Medical Journal, Dr. Victoria Male said failing to thoroughly investigate reports of menstrual changes after CCP (Chinese Communist Party) virus vaccination will likely fuel fears that the vaccines can hurt women’s chances to have children.
According to the editorial, by Sept. 2 more than 30,000 cases of menstrual disorders and unexpected vaginal bleeding after vaccination had been reported in the UK to the Medicines and Healthcare products Regulatory Agency’s (MHRA) yellow card surveillance scheme for adverse drug reactions.
On Aug. 16, the MHRA published an update saying “the rigorous evaluation completed to date” did not support a link between changes to menstrual periods and related symptoms and CCP virus vaccines.
The document says the number of reports of menstrual disorders and vaginal bleeding were low in relation to both the number of people who have received CCP virus vaccines to date and how common menstrual disorders are generally.
It also said the reported disorders were mostly transient in nature and that there had been no evidence to suggest that the vaccines would affect fertility and the ability to have children.
Male corroborated MHRA’s statement, saying most reported post-vaccine menstrual disorders only occurred for a single cycle before they returned to normal.
She also added that both unintended pregnancy rates and pregnancy rates in assisted reproduction clinics have been similar in vaccinated and unvaccinated patients in clinical trials.
However, Male argues that further investigation will be needed to eliminate uncertainties.
The yellow card scheme relies on voluntary reporting of suspected side effects or medical device incidents to be reported by health professionals and the public, including patients, carers, and parents.
Male said the nature of the system’s information collection method makes it difficult to draw firm conclusions.
By Lily Zhou
