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COVID-19 Vaccine Impact on Fertility
Current Research on the Impact of Vaccination during Pregnancy
Current CDC Guidance: COVID-19 vaccination is recommended for people who are pregnant, breastfeeding, trying to get pregnant now, or might become pregnant in the future. This recommendation was likely based on a flawed report by Shimabukuro (Shimabukuro TT, Kim SY, Myers TR, et al. 2021. Preliminary findings of mRNA Covid-19 vaccine safety in pregnant persons. New England Journal of Medicine 384(24): 2273–82. https://www.nejm.org/doi/full/10.1056/nejmoa2104983
Apr 21, 2021 (NEJM) 14% pregnancy terminations after vaccination. No mention of background rate for comparison? Further reading: relative risk not all that different [so far].
CDC additionally claims that “early data from three safety monitoring systems did not find any safety concerns for pregnant people who received an mRNA COVID-19 vaccine late in pregnancy or for their babies.” This is directly contradicted by the reports that currently exist with VAERS and given the estimated URF for VAERS, suggests another case of CDC “see no evil”.
Evidence to the contrary of CDC Claims:
The Shimabukuro claim was recently rebutted via a peer-reviewed blind review process in the November 2021 edition of Science, Public Health Policy and the Law: Volume 4:130–143 (Clinical and Translational Research) - Spontaneous Abortions and Policies on COVID-19 mRNA Vaccine Use During Pregnancy
“Our re-analysis indicates a cumulative incidence of spontaneous abortion 7 to 8 times higher than the original authors’ results (p < 0.001) and the typical average for pregnancy loss during this time period”
The Vaccine Manufacturers own inserts make no claims regarding safety during pregnancy:
Aug 23, 2021 (BioNTech/Pfizer) Comirnaty package insert
“Available data on COMIRNATY administered to pregnant women are insufficient to inform vaccine-associated risks in pregnancy.”