Study of 1.3 Million Women Links COVID Vaccines to Pregnancy Risk
The rate of successful conception — a pregnancy leading to live birth nine months later — for women who received the COVID-19 vaccine was “substantially lower” than for unvaccinated women.
The rate of successful conception — a pregnancy leading to live birth nine months later — for women who received the COVID-19 vaccine was “substantially lower” than for unvaccinated women, according to a new peer-reviewed study.
Brian Hooker, Ph.D., chief scientific officer for Children’s Health Defense (CHD), called the study’s conclusions alarming. He said:
“This preliminary analysis shows that much more information is needed to understand both short- and long-term implications of the different types of COVID shots on fertility and pregnancy parameters. This information should have been obtained prior to any public use of the COVID vaccine.”
The results showed that by June 2021, approximately six months after COVID-19 vaccines became available to the public, successful conceptions per 1,000 women were considerably lower for vaccinated women than for those not vaccinated.
The researchers observed an increase in the rate of successful conceptions for unvaccinated women beginning in June 2021, which “was maintained over the subsequent 6-month period.”
In 2022, the rate of successful conceptions “stabilized” among both vaccinated and unvaccinated women but remained “about 1.5 times higher” for the latter group.
‘Troubling’ results indicate long-term impact on reproductive health
The preliminary analysis, by five researchers from the Czech Republic, Denmark and Sweden, was published last week in the International Journal of Risk & Safety in Medicine.
The study examined data obtained from the Czech Republic, one of the few countries where nationwide birth data for women who were vaccinated or unvaccinated for COVID-19 are available, the authors said.
The researchers analyzed data on 1.3 million women, ages 18-39, between January 2021 and December 2023.
The authors said their reasons for undertaking the study included existing research showing that COVID-19 vaccines have adverse effects on “menstrual characteristics,” and the lack of data on the effect of COVID-19 vaccines on birth rates.
Data from several countries had shown decreased birth rates during the COVID-19 pandemic, researchers said. However, the “potential influence of COVID-19 vaccines on reproductive health was not assessed” in randomized preauthorization trials for those vaccines.
Pediatrician Dr. Michelle Perro said the study’s findings are “deeply concerning” and “provide insight regarding adverse effects on fertility that warrants immediate and unbiased scientific investigation.”
“Releasing a new technology, especially one administered to our most vulnerable populations without comprehensive, long-term safety data, once again, has been shown to be disastrous towards the health of future generations,” Perro said.
Karl Jablonowski, Ph.D., senior research scientist at CHD, said it was “troubling” that the rates of successful conceptions among vaccinated and unvaccinated women have not converged after 2021, indicating the vaccines’ potentially long-term impact on women’s reproductive health.
“If the exposure had short-term influence, the two groups would converge over time, and they don’t,” Jablonowski said.
Among the vaccinated women examined in the study, 96% received either the Pfizer-BioNTech or Moderna vaccines, with 11 times more women receiving Pfizer’s vaccine compared to Moderna’s.
Multiple studies link COVID vaccines and reproductive problems
The researchers noted the relationship between vaccination and fertility is not necessarily causal, and some women may have based their decision to get vaccinated on whether they planned to become pregnant — a possible example of “self-selection bias.”
However, the researchers pointed out that, during the pandemic, the overall fertility rate in the Czech Republic declined. During that time, Czech public health authorities recommended that pregnant women get vaccinated — a recommendation the researchers said many women likely followed.
These factors reduce the likelihood that self-selection bias accounts for the difference in successful conception rates among vaccinated and unvaccinated women.
Other recent studies have also found an association between COVID-19 vaccines and reproductive problems.
A peer-reviewed study published in BMC Pregnancy and Childbirth in April found that among pregnant women who tested positive for COVID-19, those who received a COVID-19 vaccine were significantly more likely to miscarry compared to unvaccinated women.
A peer-reviewed study published in March in the journal Vaccines found that COVID-19 vaccines decreased the number of primordial follicles — “the foundation of fertility” — in female rats by up to 60%.
Contaminated COVID vaccine batches may have lowered conception rates
According to the Czech researchers, highly contaminated early batches of COVID-19 vaccines may be related to decreased rates of successful conception — a theory they said deserves further investigation.
The researchers cited several studies — including a peer-reviewed analysis by Jablonowski and Hooker published last year in the journal Science, Public Health Policy and the Law — that found early batches of COVID-19 vaccines led to a disproportionately higher number of adverse events.
According to the Jablonowski-Hooker analysis, batches of the Pfizer-BioNTech COVID-19 vaccine distributed in the U.S. were associated with significantly different rates of serious adverse events.
Α 2023 Danish study found a significant percentage of the batches of the Pfizer-BioNTech BNT162b2 COVID-19 vaccine distributed in the European Union likely consisted of placebos — and the non-placebo batches demonstrated higher-than-normal severe adverse events in recipients.
In a paper published in the journal Medicine last year, the authors of the Danish study expanded their analysis to Sweden, finding the existence of the same batch-dependent issues in that country.
In another study published last year, researchers from the Czech Republic replicated the Danish study’s methodology. They found that COVID-19 vaccine batches in that country also had differing rates of adverse events, with more issues seen in early vaccine releases for all vaccines.
The lead author of that paper, Tomáš Fürst, Ph.D., is one of the new study’s co-authors.
Perro said the study’s findings “highlight the necessity for extreme caution in public health interventions, particularly for women of childbearing age and children when they involve reproductive health.” She supports calls for the “immediate cessation and withdrawal of mRNA technology.”
Hooker said, “Any decrease in fertility and increase in miscarriages and stillbirths lies at the heart of the fact that this vaccine technology should have never been rolled out to the public in the first place.”
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Thank you to all the brave doctors & scientists and all the people of the world with curiosity, integrity, and strength of character who have risked so much to get this info out into the world.
The mRNA shots were/are always going to be an immunological catastrophe for humanity.
The mechanism of action (using mRNA instructions to turn one’s own cells into foreign non-self “spike protein factories”) is the primary mechanism of harm.
The primary danger of the COVID-19 mRNA injections has always been one’s own immune system’s attack response by the mighty CD8+ Cytotoxic T Lymphocyte cells (AKA Killer T-cells):
The COVID-19 mRNA injections must be recalled from the market and mRNA-based products must be banned because the modified mRNA-LNP genetic technology platform is fundamentally flawed & dangerous by design.
These modified mRNA-LNP COVID-19 injections, that trigger one's own immune system to attack & kill one's own formerly healthy cells (that have been instructed to produce/express foreign, non-self proteins), no matter where those cells are in the body, never should have been made available to the public in the first place.
When the (designed to be long-lasting) n1-methyl pseudouridine modified mRNA transfects one's cells, and gives instructions for the ribosomes to make & express foreign non-self proteins (such as the toxic SARS-CoV-2 spike protein), one's immune system sends the CD8+ cytotoxic T lymphocytes (CTLs) to kill those formerly healthy cells that are now making & expressing non-self proteins.
It is the mission of these CD8+ CTLs to seek out and destroy any such transfected cell that is making foreign non-self proteins. That’s what they do…
Due to the biodistribution properties of the lipid nanoparticles, the encased modified mRNA can go anywhere in the body, including crossing the blood-brain and placental barriers...The LNP "delivery vehicles" traveled to different parts of the body in different people.
Expressing any foreign protein is fatal to the cell doing the expressing. The reason is, our bodies are protected by being able to distinguish ourselves from things that shouldn't be there. Anything non-self will trigger immune destruction of the cells & tissues involved.
Some people will express lots of foreign proteins in vulnerable locations. Others express less in less vulnerable areas.
The location of expression defines the adverse event: if you get foreign protein expression in your heart cells, you could get myocarditis & experience cardiac arrest; if the expression is in your brain, spinal cord, or peripheral nervous system, you could get one or more of a variety of neurological conditions; if in your eye, possible blindness; if in your ovaries, possible infertility; if in the placenta, possible miscarriage, stillbirth, or birth defects; if in the endothelial cells that line your blood vessels, possible vascular &/or microvascular injuries like clots/microclots or the long white fibrous clots, leading to strokes, heart attacks, or pulmonary embolisms…
If the expression of foreign proteins is in your own immune cells, you could experience immune dysfunction, dysregulation, & suppression including repeated infections, immune tolerance of a pathogenic foreign protein due to antibody subclass switch to IgG4 & increased IgG4-related diseases, T cell exhaustion, interference with & suppression of innate immunity, persistent systemic inflammation, dysregulation of toll-like receptors and reduced cancer surveillance or the suppression of tumor-suppressing immune system activities & cell-signaling (increasing your risk of fast-growing and aggressive cancers)…
And more…
There's no limit to the horrible consequences of injecting into your body something that triggers your own immune system to attack & kill your own formerly healthy cells & tissues.
The public “health” agencies, the COVID “authorities”, & the “mainstream” media fraudulently marketed these experimental mRNA gene “therapy” products as “safe & effective vaccines”. Trusting people thought that they were being presented with the choice (or the mandate) as to whether or not to take a “safe & effective vaccine”…But that was/is a deceptively false “choice”…
The COVID-19 mRNA injections are NOT safe, they are NOT effective, and they are NOT vaccines.
These modified mRNA-LNP gene “therapy” injections never would have passed proper safety studies required for gene therapy products. Safety studies (including biodistribution, immunogenicity, immunotoxicity, genotoxicity, carcinogenicity, reproductive toxicity, shedding, long-term effects, & more) that were bypassed because of the fraudulent mislabeling as “vaccines”. (And because of the EUA & “countermeasure” designations under the Project BioShield Act & PREP Act).
NO ONE should have ever had the “choice” of taking these gene “therapy” injections because the modified mRNA-LNP genetic technology platform is fundamentally flawed & dangerous by design.
The danger is NOT limited to just getting more COVID “boosters”. ANY mRNA gene “therapy” product that transfects your cells and instructs those cells to produce foreign non-self proteins (ANY non-self protein) will trigger an immune system attack response against your own cells & tissues (the role of the Killer T-cells is to monitor ALL the cells of the body, ready to destroy/kill any that express foreign, non-self proteins). This makes EVERY mRNA-based injected product harmful by design.
No one who took these modified mRNA-LNP COVID injections made an informed decision. Most people had no clue about what they allowed to be injected into their bodies...
Also most people still do not understand that the devastating harms inflicted upon people over the last few years was intentional:
https://rumble.com/v6qcb0y-dr.-david-martin-mar-06-2025-edmonton-alberta-replay.html
Situation in Europe is alarming. In the western countries birthrates have dropped significantly since 2020. We need more public awareness and a sound health strategy to reduce the harm done.