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Vaccines

Infant vaccinations and sudden infant death — what do critics say?

Sources: 12 · Article: 15 001 characters

The STOP NOP Association describes the sudden deaths of 19 infants that occurred within hours or days after combination vaccinations.

  • According to the association, some deaths of children after several vaccine doses may have been wrongly attributed to shaking.
  • The authors of the case report believed that the child died from possible post-vaccination encephalitis.

What the authors write

Stowarzyszenie STOP NOP

The sudden, unexpected deaths of 19 infants within hours or days after they received combination vaccines were described, but it was not directly shown that the vaccinations caused them.

„In 2005, a paper was published describing sudden unexpected death (SUD) in 19 infants within several hours/days after vaccination with two hexavalent vaccines (DTP-Hib-HepB-IPV). The children had been healthy before vaccination and died from post-vaccination brain and lung swelling and heart attacks.”W 2005 roku opublikowano pracę, w której opisano nagłą śmierć (SUD ? sudden unexpected death) u 19 niemowląt w ciągu kilku godzin/dni po szczepieniu dwiema szczepionkami hexawalentnymi (DTP-Hib-HepB-IPV). Zdrowe przed szczepieniem dzieci zmarły w wyniku poszczepiennych obrzęków mózgu, płuc oraz zawałów serca.
Dr n.med. Dorota Sienkiewicz „Bezpieczne szczepienia” – alternatywny kalendarz szczepień – Ogólnopolskie Stowarzyszenie Wiedzy o Szczepieniach "STOP NOP"
Stowarzyszenie STOP NOP

It was reported that the children died within days or weeks after several vaccine doses, and that some of the deaths were allegedly wrongly attributed to shaken baby syndrome.

„There are many scientific articles describing the deaths of children within several weeks, or even days, after they received several vaccine doses. Many of these children were wrongly diagnosed with shaken baby syndrome. Shaken baby syndrome itself is an unconfirmed hypothesis?”Istnieje wiele artykułów naukowych opisujących zgony dzieci w ciągu kilku tygodni, a nawet dni po podaniu kilku dawek szczepień. U wielu z tych dzieci błędnie zdiagnozowano zespół dziecka potrząsanego. Sam zespół dziecka potrząsanego to niepotwierdzona hipoteza ?
Niebezpieczne szczepionki powodują symptomy zespołu dziecka potrząsanego – Ogólnopolskie Stowarzyszenie Wiedzy o Szczepieniach "STOP NOP"
Stowarzyszenie STOP NOP

It was noted that there is no research clearly confirming that vaccinations cause the injuries associated with shaken baby syndrome.

„There is no research clearly establishing that vaccinations can cause the triad of injuries associated with shaken baby syndrome, but since it has never been conclusively proven that vaccinations are safe? Because comparing equally sized groups of vaccinated and unvaccinated children is considered unethical?”Brak badań stwierdzających jednoznacznie, że szczepienia mogą powodować triadę obrażeń kojarzonych z zespołem potrząsanego dziecka, ale ponieważ nigdy nie dowiedziono bezspornie, że szczepienia są bezpieczne ? bo porównanie równolicznych grup dzieci szczepionych i nieszczepionych uważa się za nieetyczne ?
Niebezpieczne szczepionki powodują symptomy zespołu dziecka potrząsanego – Ogólnopolskie Stowarzyszenie Wiedzy o Szczepieniach "STOP NOP"
Stowarzyszenie STOP NOP

The authors of the case report believed that the child's death had been wrongly attributed to shaken baby syndrome, and that its true cause may have been post-vaccination encephalitis.

„[7] Dr. Buttram begins his article with the following words: “In this report, together with Dr. Yazbak, we present the findings of our case study of a child's death, which in our opinion was wrongly diagnosed as a death due to shaken baby syndrome, and whose true cause was, in our view, post-vaccination encephalitis.””[7] Dr Buttram rozpoczyna swój artykuł następującymi słowami: ?W niniejszym raporcie razem z dr Yazbakiem przedstawiamy wyniki naszego badania przypadku śmierci dziecka, który naszym zdaniem zostały błędnie zdiagnozowany jako śmierć wskutek zespołu dziecka potrząsanego, a jego prawdziwą przyczyną było, w naszej opinii, poszczepienne zapalenie mózgu.
Niebezpieczne szczepionki powodują symptomy zespołu dziecka potrząsanego – Ogólnopolskie Stowarzyszenie Wiedzy o Szczepieniach "STOP NOP"
Stowarzyszenie STOP NOP

Cases were described of severe brain damage or death in children whose symptoms appeared shortly after routine vaccinations.

„When examining these children's medical histories, based on caregivers' accounts and medical records, I quickly established that shortly before the onset of the illness leading to severe brain damage or death, they had received one or more of a series of so-called routine vaccines against hepatitis B, diphtheria, tetanus and pertussis, polio, and Haemophilus influenzae.””Badając osobistą historię medyczną tych dzieci, w oparciu o zapisy opiekunów i dokumentację medyczną, szybko ustaliłam, że w krótkim czasie przed wystąpieniem objawów choroby prowadzącej do poważnego uszkodzenia mózgu lub śmierci podano im jedną lub więcej z serii tak zwanych rutynowych szczepionek przeciwko żółtaczce typu B, błonicy, tężcowi i krztuścowi, polio oraz haemophilus influenzae.?
Niebezpieczne szczepionki powodują symptomy zespołu dziecka potrząsanego – Ogólnopolskie Stowarzyszenie Wiedzy o Szczepieniach "STOP NOP"
Stowarzyszenie STOP NOP

Vaccinations were presented as a possible source of complications, such as encephalitis, which can lead to death.

„in public health policymaking and in shared medical decisions made by doctors and patients.7 8 VACCINES: KNOW THE RISKS As was the case with the first smallpox vaccine, every vaccine currently recommended by government health officials and medical associations carries a risk of complications, such as encephalitis, which can lead to chronic damage to the brain and immune system, and even death.9 10 11 12 13”w zakresie tworzenia polityki zdrowia publicznego oraz w zakresie wspólnych decyzji medycznych podejmowanych przez lekarzy i pacjentów.7 8 SZCZEPIENIA: POZNAJ RYZYKO Jak miało to miejsce w przypadku pierwszej szczepionki przeciwko ospie prawdziwej, każda szczepionka współcześnie zalecana przez urzędników rządowych resortu zdrowia i stowarzyszenia medyczne wiąże się z ryzykiem powikłań, takich jak zapalenie mózgu, które mogą prowadzić do przewlekłych uszkodzeń mózgu i układu odpornościowego, a nawet do śmierci.9 10 11 12 13
Szczepienia – poznaj ich ryzyko i skuteczność – Ogólnopolskie Stowarzyszenie Wiedzy o Szczepieniach "STOP NOP"

Research from PubMed · Europe PMC

We selected 6 studies with the best, positive results. This is a selection, not a full review of all research.

Total number of studies on this topic in PubMed: 165.

The study did not find that DTCP vaccination increased the overall risk of SIDS, although a difference was noted in a small subgroup of infants under 3 months old.

Aim of the study: Because diphtheria, tetanus, pertussis and poliomyelitis vaccine is routinely given during the period of highest incidence of sudden infant death syndrome (SIDS), we carried out a retrospective case-control study to assess whether such vaccination increased the risk of SIDS.

Results: There was a statistical difference between vaccination status of SIDS cases and controls aged less than three months. Nine percent of SIDS cases under 3 months had been vaccinated whereas the matched controls had not. In our study DTCP vaccination was not a risk factor for SIDS; although more of the SIDS infants less than 3 months of age had been vaccinated. This result however, concerns only one subgroup of the population studied and needs to be confirmed with another study of only SIDS infants less than 3 months of age, because DTCP vaccination was not a risk factor for SIDS when considering the total sample of the study.

Sudden infant death syndrome and diphtheria-tetanus-pertussis-poliomyelitis vaccination status. · Fundam Clin Pharmacol 1995
Money for the studynot stated
Do the authors have ties to companies?not stated
Did a manufacturer help with the study?unknown
Type of studyclinical study in people

“Not stated” does not mean nobody paid — the database does not always record it.

In some cases, death occurred shortly after vaccination, but the researchers did not establish a causal link.

Aim of the study: Sudden infant deaths might be attributable to adverse reaction to vaccination, but separating them from coincidental occurrences is difficult. This study retrospectively investigated vaccination-related details and postmortem findings for 57 cases of sudden death in children 2 years or younger.

Results: Histopathological examinations revealed pneumonia and upper respiratory infection as contributing to death in their cases. Moreover, all 3 cases showed hemophagocytosis in the spleen and lymph nodes, which are similar features to hemophagocytic lymphohistiocytosis. Judgment of the disorders as truly related to vaccination is difficult, but suspicious cases do exist. Forensic pathologists must devote more attention to vaccination in sudden infant death cases.

Sudden Infant Death After Vaccination: Survey of Forensic Autopsy Files. · Am J Forensic Med Pathol 2019
Money for the studynot stated
Do the authors have ties to companies?not stated
Did a manufacturer help with the study?unknown
Type of studyobservation of people
Participants57

“Not stated” does not mean nobody paid — the database does not always record it.

The study did not confirm a causal link, although the authors hypothesized that vaccine components may play a role in vulnerable infants.

Aim of the study: We examined a large number of sudden infant death syndrome victims in order to point out a possible causal relationship between a previous hexavalent vaccination and the sudden infant death. We selected 110 cases submitted to in-depth histological examination of the autonomic nervous system and provided with detailed clinical and environmental information.

Results: In one case in particular an acquired hyperacute encephalitis of the tractus solitarii nucleus was diagnosed in the brainstem. This study does not prove a causal relationship between the hexavalent vaccination and SIDS. However, we hypothesize that vaccine components could have a direct role in sparking off a lethal outcome in vulnerable babies. In conclusion, we sustain the need that deaths occurring in a short space of time after hexavalent vaccination are appropriately investigated and submitted to a post-mortem examination particularly of the autonomic nervous system by an expert pathologist to objectively evaluate the possible causative role of the vaccine in SIDS.

Sudden infant death following hexavalent vaccination: a neuropathologic study. · Curr Med Chem 2014
Money for the studynot stated
Do the authors have ties to companies?not stated
Did a manufacturer help with the study?unknown
Type of studyobservation of people
Participants110

“Not stated” does not mean nobody paid — the database does not always record it.

The review discusses the hypothesis that an inflammatory response similar to one following vaccination could, under certain circumstances, make an infant more susceptible to severe infection.

Aim of the study: Within sudden infant death syndrome (SIDS) reside several primary phenomena. These include a state of immune immaturity, susceptibility to infection, and an inflammatory state.

Results: The pattern of inflammation is very similar to that observed following vaccination. The complex relationship between reactogenicity and immunogenicity is examined. Under certain circumstances, reactogenicity can cause immune paralysis and may leave a vulnerable infant open to infection and systemic inflammatory response syndrome, leading to shock. This mechanism is explored in this rapid review in the context of the aetiopathogenesis of SIDS.

Reconsidering the Complex Role of Inflammation in Sudden Infant Death Syndrome. · Cureus 2026
Money for the studynot stated
Do the authors have ties to companies?no — the authors say so
Did a manufacturer help with the study?NO
Type of studydiscussion of other studies

“Not stated” does not mean nobody paid — the database does not always record it.

Among infants of mothers vaccinated against COVID-19, the rate of death did not exceed pre-pandemic levels.

Aim of the study: The COVID-19 Vaccine Pregnancy Registry (C19VPR) monitored pregnant women vaccinated for COVID-19 during December 2020 to June 2021. We report incidence of health outcomes among infants of C19VPR participants.

Results: Of 19,852 infants with 3-month follow-up data, 125 (0.6%) had at least one prespecified condition. Estimated C19VPR incidences for these conditions, LBW, SGA, and death, were within or below ranges reported in prepandemic studies. The incidence of LBW, SGA, death, or each of 10 prespecified infant conditions in C19VPR did not exceed prepandemic estimates.

Neonatal and Infant Health Outcomes Following Maternal COVID-19 Vaccination: CDC's COVID-19 Vaccine Pregnancy Registry. · J Pediatr Health Care 2026
Money for the studycompany together with others · Intramural CDC HHS, Centers for Disease Control and Prevention
Do the authors have ties to companies?no — the authors say so
Did a manufacturer help with the study?YES
Type of studyobservation of people
Participants19 852

“Not stated” does not mean nobody paid — the database does not always record it.

The meningococcal vaccine studied, given together with routine vaccines, was generally well tolerated, and its safety profile was comparable to that of another meningococcal vaccine.

Aim of the study: MenACYW-TT, a quadrivalent meningococcal tetanus toxoid-conjugate vaccine, is approved for prevention of invasive meningococcal disease in infants ≥ 6 weeks of age in the USA.

Results: During the entire study, 5.2% in Group 1 and 3.0% in Group 2 experienced at least one SAE; 0.9% and 0.1%, respectively, reported at least one AESI. Three deaths occurred in Group 1. All SAEs, AESIs, and deaths were unrelated to study vaccines. This study supports the safety profile of MenACYW-TT in infants and toddlers aged ≥ 6 weeks.Study registration: Clinicaltrials.gov: NCT03673462; EudraCT: 2019-004459-35.

Safety of a quadrivalent meningococcal conjugate vaccine (MenACYW-TT) administered concomitantly with routine pediatric vaccines in healthy infants and toddlers in USA and Puerto Rico: Results from a Phase III, randomized, active-controlled study. · Hum Vaccin Immunother 2026
Money for the studycompany or manufacturer · Sanofi
Do the authors have ties to companies?yes — the authors reported it
Did a manufacturer help with the study?YES
Type of studystudy with random allocation to groups (RCT)

“Not stated” does not mean nobody paid — the database does not always record it.

Perspectives and opinion materials

The content below presents the authors’ opinions, interpretations and hypotheses. It is not treated as equal to scientific studies and systematic reviews.

Orthomolecular Medicine News Service Opinion material
„Brainstem serotonergic deficiency in sudden infant death syndrome. JAMA 303, 430-437 (2010). 20. Paterson, D. S. et al. Multiple serotonergic brainstem abnormalities in sudden infant death syndrome. JAMA 296, 2124-2132 (2006). 21. Mawson, A. R. & Jacob, B. Vaccination and Neurodevelopmental Disorders: A Study of Nine-Year-Old Children Enrolled in Medicaid - Science, Public Health Policy and the Law. Science, Public Health Policy and the Law (2025). 22. Teixeira, V., Mohamed, I. & Lavoie, J.-C.”Brainstem serotonergic deficiency in sudden infant death syndrome. JAMA 303, 430-437 (2010). 20. Paterson, D. S. et al. Multiple serotonergic brainstem abnormalities in sudden infant death syndrome. JAMA 296, 2124-2132 (2006). 21. Mawson, A. R. & Jacob, B. Vaccination and Neurodevelopmental Disorders: A Study of Nine-Year-Old Children Enrolled in Medicaid - Science, Public Health Policy and the Law. Science, Public Health Policy and the Law (2025). 22. Teixeira, V., Mohamed, I. & Lavoie, J.-C.
Born Defenseless: Why Infant Liver Maturity May Be the Missing Piece in Understanding Vaccine Safety, SIDS, and NDDs
Orthomolecular Medicine News Service Opinion material
„I even had a case of a conscientious nursing mother who herself had developed milk allergy that was creating colic in her infant. Conclusion When I think of the effectiveness of keeping calm and composed, I see the importance of this in the "irritable bowel syndrome." The adult gut activity is greatly influenced by stress, and medical treatment attempts to reduce the activity of the bowel. Any drug used to calm the mind is fraught with side-effects. Swaddling an adult as we might an infant with a blanket, would not help, leaving us with few choices other than either avoiding stressful situations or learning how to deal with them.”I even had a case of a conscientious nursing mother who herself had developed milk allergy that was creating colic in her infant. Conclusion When I think of the effectiveness of keeping calm and composed, I see the importance of this in the "irritable bowel syndrome." The adult gut activity is greatly influenced by stress, and medical treatment attempts to reduce the activity of the bowel. Any drug used to calm the mind is fraught with side-effects. Swaddling an adult as we might an infant with a blanket, would not help, leaving us with few choices other than either avoiding stressful situations or learning how to deal with them.
Infantile Colic
Orthomolecular Medicine News Service Opinion material
„Girls who had adverse effects from the HPV vaccine were variously diagnosed with: Higher brain dysfunction Guillain-Barré syndrome Multiple sclerosis ADEM: acute disseminated encephalomyelitis SSPE: subacute sclerosing panencephalitis CRPS: Complex regional pain syndrome POTS: Postural orthostatic tachycardia syndrome Anti-phospholipid antibody syndrome SLE: systemic lupus erythematosus Rheumatoid arthritis Chronic fatigue syndrome Fibromyalgia Cushing's syndrome (exposure to high level of cortisol) Hashimoto's disease (immune system attacks the thyroid) Hyperprolactinemia (high prolactin, induces breast development and lactation) Laboratory…”Girls who had adverse effects from the HPV vaccine were variously diagnosed with: Higher brain dysfunction Guillain-Barré syndrome Multiple sclerosis ADEM: acute disseminated encephalomyelitis SSPE: subacute sclerosing panencephalitis CRPS: Complex regional pain syndrome POTS: Postural orthostatic tachycardia syndrome Anti-phospholipid antibody syndrome SLE: systemic lupus erythematosus Rheumatoid arthritis Chronic fatigue syndrome Fibromyalgia Cushing's syndrome (exposure to high level of cortisol) Hashimoto's disease (immune system attacks the thyroid) Hyperprolactinemia (high prolactin, induces breast development and lactation) Laboratory…
Orthomolecular Treatment for Adverse Effects of Human Papilloma Virus (HPV) Vaccine

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