the pfizer vaccine is known to have a sometimes severe effect on female periods.
The Covid vaccine contains a syncytin-1, a protein that contributes to the formation of the placenta in women. The vaccine is made to work against this ‘spike protein’, and will force the body to attack it thus leading to infertility in women indefinitely.
In response to the vaccine the body will make antibodies against the spike proteins of Cov-2, but those spike proteins have syncytin homologous proteins essential fertilization in women (placenta formation). An immune reaction against the homologous proteins will lead to infertility in women.
mRNA vaccines from BioNTech contain poly ethyl ene glycol. Nearly three-quarters of people who get vaccinated will develop antibodies to this chemical, leading to fatal allergic reactions.
late effects of the vaccine are impossible to assess given the trial period. This vaccine is on track to be approved by the beginning of 2021.