#vaccinesafety — Public Fediverse posts

HPV vaccine safe and effective despite RFK Jr. claims, Marissa Birnie reports. Find out more at canadahealthwatch.ca #VaccineSafety #CdnHealth

Canada Healthwatch | Health Ne...

DATE: October 4, 2026 at 07:00AM
SOURCE: PSYPOST.ORG

** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
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TITLE: Study of 2.5 million children finds no link between MMR vaccine and autism

URL: https://www.psypost.org/study-of-2-5-million-children-finds-no-link-between-mmr-vaccine-and-autism/

A new study of over 2.5 million children provides evidence that receiving the measles, mumps, and rubella vaccine before age two is not associated with an increased risk of developing autism. The findings, published in The Pediatric Infectious Disease Journal, indicate that the precise timing of the immunization was not linked to a child’s likelihood of being diagnosed with the developmental condition.

Autism spectrum disorder is a developmental condition that affects how a person communicates, interacts with others, and experiences the world. The condition is currently estimated to affect about 3.2 percent of children in the United States. The measles, mumps, and rubella vaccine is a standard early childhood immunization that protects against three highly contagious and potentially severe viral infections.

Fears linking this routine vaccine to autism persist among some parents, frequently leading to delayed or declined immunizations. This anxiety largely stems from a 1998 case series, a report on just 12 children, that was later retracted due to scientific misconduct. Numerous large studies over the years have found no link between the vaccine and the developmental condition.

Even with this extensive body of research, observational studies on vaccine safety face built-in design challenges. Factors like a family’s healthcare habits, early parental concerns about a child’s development, and the child’s age can influence both when they get vaccinated and if they receive an autism diagnosis.

If an analysis does not adjust for the fact that children receive vaccines at different developmental stages, the results might be skewed. The research, led by Todd L. Burstain of UW Medicine, aimed to address these complexities using a more precise study design.

The authors utilized an approach known as age-anchored landmark analysis. This method groups children by the age window in which a vaccination decision is typically made, comparing vaccinated and unvaccinated children within those defined age windows to reduce bias.

To carry out the research, the scientists analyzed records from Cosmos, a massive electronic health record database spanning hospitals and clinics across the United States. The dataset included 2,560,035 children who had at least one routine primary care visit between 12 and 24 months of age. The prevalence of childhood autism in this sample was 2.55 percent. The researchers focused on a specific diagnostic code for childhood autism, a narrower category than the full autism spectrum, which partly explains why the prevalence in the sample was lower than the national estimate.

The researchers excluded any children diagnosed with autism at or before 11 months of age to ensure the vaccine came before the diagnosis. The children were followed up to age eight or until December 2024. By 24 months of age, 91.4 percent of the children in the sample had received their first dose of the measles, mumps, and rubella vaccine.

The authors divided the children into defined age windows, such as 11.5 to 12.5 months, 12.5 to 13.5 months, and up to 24 months. Within each window, they compared children who received their first dose during that window with children who had not been vaccinated by the start of the window and remained unvaccinated throughout follow-up.

To ensure the comparison was as fair as possible, the researchers adjusted for factors that might influence both vaccination and autism diagnosis. These included the mother’s age, race and ethnicity, gestational age at birth, whether the baby was small for its gestational age or one of multiple births, diabetes or genital or urinary tract infections during pregnancy, neighborhood disadvantage, and region of the country. They avoided adjusting for factors that happen after the vaccination, which can distort the results.

Across all the age windows analyzed, the first dose of the vaccine was not associated with an increased risk of autism. In the primary analysis, covering vaccination between 11.5 and 24 months, the adjusted hazard ratio was 0.97, with a 99 percent confidence interval of 0.91 to 1.03. A hazard ratio compares how quickly new diagnoses occur in two groups, and because this range includes 1.0, the result is consistent with no difference in risk. The 0.97 estimate translates to an estimated 3 percent lower rate of diagnosis among vaccinated children, a difference that is not statistically distinguishable from zero.

In two of the later windows, 14.5 to 17.5 months and 17.5 to 24 months, vaccinated children had slightly lower rates of autism diagnosis, with hazard ratios of 0.90 and 0.92. The authors attribute small deviations like these to leftover bias in the data rather than to any protective effect of the vaccine.

The findings held up under different analyses. Results were essentially unchanged with more birth-related factors added (hazard ratio 0.97) and without the neighborhood measure, which was missing for 53 percent of children (hazard ratio 0.96). They also held after excluding children with only one recorded autism diagnosis.

To double-check their methodology, the researchers also tested a negative control exposure. They looked at the pneumococcal conjugate vaccine booster, which is given around 12 to 15 months to prevent bacterial infections but has no theoretical link to autism. A negative control is a comparison where no effect is expected, used to check whether a method produces false signals. The similar result for the pneumococcal booster suggests the analysis was not generating spurious links tied to routine checkups, supporting the authors’ view that leftover bias is unlikely to explain the measles, mumps, and rubella findings.

As with all research, there are a few things to keep in mind. The study relied on observational medical records, meaning the researchers could not control for every single variable in a child’s life.

Notably, the dataset did not include information on a family history of autism. If parents who already have an older child with autism are more hesitant to vaccinate their younger children, this missing detail could skew the data. Such a pattern would tend to make the vaccine look protective rather than harmful. A 2015 study the authors cite, which examined U.S. children with older siblings who had autism, also found no link between the measles, mumps, and rubella vaccine and autism.

Additionally, the children who received the vaccine tended to have much longer follow-up periods in the medical system compared to the unvaccinated children, with a median of 853 days for vaccinated children versus 366 for unvaccinated. Typically, spending more time interacting with healthcare providers creates more opportunities to receive a formal diagnosis, yet the researchers still found no link between the vaccine and autism.

The requirement that children have linked birth-parent records also excluded a substantial proportion of otherwise eligible children from the analysis. This means the findings might not capture the experiences of all children receiving medical care.

Future studies could incorporate external data on family history and socioeconomic factors to provide an even sharper picture. Scientists might also test if these findings hold true for broader autism spectrum disorder diagnoses rather than the specific childhood autism diagnostic code used in this analysis.

The study, “Association Between First MMR Vaccination Before Age 2 Years and Childhood Autism in a U.S. EHR Cohort of 2.5 Million Children,” was authored by Todd L. Burstain, Dale Jacques, and Jennifer M. Burstain.

URL: https://www.psypost.org/study-of-2-5-million-children-finds-no-link-between-mmr-vaccine-and-autism/

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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #MMRVaccineAndAutism #AutismResearch #VaccinesSafety #MMRNoLinkAutism #ChildHealth #ImmunizationAwareness #PublicHealth #EHRStudy #VaccineSafety #AutismPrevention

Diseases of the past like measles and diphtheria are making a comeback

Contracting a case of measles and enduring the fever, cough, sore eyes and characteristic red rash was a…
#NewsBeep #News #Health #anti-vaxxers #AU #Australia #diphtheria #immunisation #Measles #Vaccine #vaccineaccess #vaccinesafety
https://www.newsbeep.com/au/914087/

WHO Taps South Korea’s Regulatory Expertise on Medicine and Vaccine Safety

The World Health Organization (WHO) has designated the Global Harmonization Centre (GHC) in the Republic of Korea as…
#EuropeSays #Korea #KR #SouthKorea #GHC #GlobalHarmonisationCentre #HealthProductRegulation #HealthWorkforce #MedicineSafety #MFDS #NIFDS #publichealth #Quality-AssuredMedicines #RegulatorySystems #RegulatoryTraining #RepublicofKorea #VaccineSafety #who
https://www.europesays.com/korea/136197/

Francesca Hong’s Narrow Loss Is Both a Warning and a Victory for Progressives

Francesca Hong lost Wisconsin’s Democratic primary by just 0.5%, but her working-class campaign proved that statewide progressive politics has real power.

Trump’s COVID Failure Killed Americans RFK Jr Is Repeating the Deadly Experiment

The COVID disaster was a warning. Trump and RFK Jr. are repeating it by undermining vaccines, weakening health safeguards, and rewarding the politics of fear.

https://www.europesays.com/africa/397892/ Africa Sets a New 10-Year Strategy to Make Medicines, Vaccines and Medical Products Safer #Africa #AfricaHealthcare #AfricanHealthSystems #AfricanMedicinesAgency #Diagnostics #HealthRegulation #HealthSecurity #MedicalDevices #MedicalProductRegulation #MedicinesSafety #PharmaceuticalManufacturing #PublicHealth #RegulatorySystems #UniversalHealthCoverage #VaccineSafety

Billions of doses later: Global review confirms mRNA vaccines safe and effective

https://news.ubc.ca/2026/06/mrna-vaccines-are-safe-effective-and-full-of-promise/

#HackerNews #mRNAvaccines #VaccineSafety #GlobalHealth #PublicHealth #VaccineEfficacy

Senator Cassidy’s Loss Shows Political Risk of Public Health Leadership

US Senator Bill Cassidy, Republican of Louisiana, attends a US Senate Finance Committee business meeting to consider the…
#UnitedStates #US #USA #america #BillCassidy #elections #geopolitics #LEADERSHIP #MAHA #MakeAmericaHealthyAgain #Politics #Publichealth #RobertF.KennedyJr. #Senate #unitedstatesofamerica #UnitedStatesPolitics #USPolitics #usapolitics #vaccinesafety
https://www.europesays.com/3011404/

https://www.europesays.com/3011404/ Senator Cassidy’s Loss Shows Political Risk of Public Health Leadership #america #BillCassidy #elections #geopolitics #LEADERSHIP #MAHA #MakeAmericaHealthyAgain #Politics #PublicHealth #RobertFKennedyJr #Senate #UnitedStates #UnitedStatesOfAmerica #UnitedStatesPolitics #US #USPolitics #USA #UsaPolitics #VaccineSafety

🚨 @[email protected] officials blocked or withdrew agency studies that largely confirmed the safety of #COVID-19 and shingles vaccines, raising new concerns about transparency in US vaccine oversight. @[email protected] @[email protected] @[email protected] @[email protected] #VaccineSafety 📖⬇️ & 🔁🙏

US Food And Drug Administratio...

France steps up vaccination push as anti-vax fears grow in Europe

As vaccination awareness events continue across Europe this week, France is focusing on meningococcal infections and human papillomavirus…
#France #FR #Europe #EU #BrigitteAutran #meningococcalinfections #PasteurInstitute-supported #rabiesvaccine #vaccination #vaccinationagainstHPV #vaccinehesitancy #vaccinerequirements #vaccinesafety
https://www.europesays.com/france/10519/

COVID Vaccines Did Not Raise Sudden Death Risk in Healthy Young People

Image via Unsplash. Triggering sudden deaths in healthy young people was one of the most explosive accusations lodged…
#NewsBeep #News #Health #AU #Australia #Cardiology #COVID-19Vaccines #MedicalResearch #Myocarditis #publichealth #SuddenCardiacDeath #vaccinesafety
https://www.newsbeep.com/au/571801/

https://www.europesays.com/ie/408313/ COVID Vaccines Did Not Raise Sudden Death Risk in Healthy Young People #cardiology #COVID19Vaccines #Éire #Health #IE #Ireland #MedicalResearch #myocarditis #PublicHealth #SuddenCardiacDeath #VaccineSafety

Does the COVID vaccine affect fertility? A major study of 60,000 women provides clear answers. https://english.mathrubhumi.com/lifestyle/health/covid-vaccine-fertility-no-link-study-eleinoa0?utm_source=dlvr.it&utm_medium=mastodon #COVIDVaccine #FertilityFacts #PublicHealth #VaccineSafety

🚀 The HHS is rolling out a new AI tool that uses large language models to sift through VAERS reports and auto‑generate hypotheses about unverified vaccine injury claims. It could speed up health data analysis while staying open‑source friendly. Curious how machine learning meets public‑health surveillance? Read the full story. #AI #LLM #VAERS #VaccineSafety

🔗 https://aidailypost.com/news/hhs-develops-ai-generate-hypotheses-unverified-vaccine-injury-claims

and concerns about seizures and epilepsy are frequently cited by hesitant parents. Routine vaccines and their aluminum adjuvants are not linked to epilepsy Read the full article: www.jpeds.com/article/S002... #PublicHealth #VaccineSafety #Pediatrics #Epilepsy #Immunization

Kerala health authorities have assured parents that the Japanese encephalitis vaccine being given to children is safe and effective, with only rare and mild side effects reported. https://english.mathrubhumi.com/news/kerala/japanese-encephalitis-vaccine-is-safe-kerala-health-services-director-assures-bb0tzsaw?utm_source=dlvr.it&utm_medium=mastodon #JapaneseEncephalitis #VaccineSafety #KeralaHealth #ChildImmunisation

Australia flags ‘fake’ rabies jab; Indian manufacturer counters claim

Australian health authorities have raised concerns over alleged counterfeit versions of the rabies vaccine Abhayrab in India, prompting…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Health ##Abhayrab ##ATAGIAdvisory ##CounterfeitVaccine ##FakeVaccineAlert ##IndianImmunologicals ##IndiaVaccines ##RabiesVaccine ##RabiesVaccineIndia ##TravelVaccinations ##VaccineSafety
https://www.newsbeep.com/us/373079/

Former CDC Director Blows Whistle on Vaccine Lies and Political Sabotage

A former CDC leader warns the agency now spreads political misinformation about vaccines and autism—endangering kids and undermining science.

#autismMythDebunked #cdcCorruption #cdcCredibilityCollapse #cdcWhistleblower #demetreDaskalakis #democracyRestoration #egbertoOffTheRecord #governmentAccountability #healthcareIntegrity #independentMedia #institutionalReform #pediatricianGuidance #politicsDoneRight #progressivePolitics #publicHealthCrisis #publicTrustInScience #rfkJrMisinformation #scienceBasedGovernance #trumpAdministrationDamage #vaccineMisinformation #vaccineSafety

https://wp.me/p1OjMZ-oeL

The U.S. Department of Health is reinstating the Task Force on Safer Childhood Vaccines, which disbanded in 1998. Its chair will be Dr. Jay Bhattacharya, co-author of the Great Barrington Declaration, who advocated "herd immunity" during the height of the COVID-19 pandemic and opposed mask mandates and vaccine passports. Here's more from NBC.

https://flip.it/8o_ex9

#Health #Medicine #Science #Childhood #Children #Vaccines #VaccineSafety #TrumpAdministration #RFK

"In this nationwide cohort study, no increased risk of 29 adverse events was observed after vaccination with the updated COVID-19 mRNA vaccine containing the SARS-CoV-2 Omicron JN.1 lineage in approximately 1 million adults." The efficacy and safety of #COVID19 #vaccines is continuously investigated and monitored. #vaccines #vaccination #VaccineSideEffects #VaccineSafety #VaccinesSaveLives

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2836889

"The first thing to do if someone expresses uncertainty about vaccines to you, say researchers, is not to judge or dismiss them. It’s wrong to assume that people are ignorant, irrational or have naively swallowed online misinformation. A lot of people have genuine and legitimate questions..."

I guess, the main point is that there are risks associated with vaccines, but that the diseases that they prevent are much worse. #vaccine #vaccines #vaccination #VaccineSafety #VaccineSideEffects #VaccinesWork

https://www.nature.com/articles/d41586-025-01771-z

Guillain-Barré syndrome (GBS) is a rare neurological disorder where the body’s immune system attacks the nerves, affecting about 1 to 4 people per 100,000 each year. It is rare! You need a lot of people to be able to do a study like this one.

https://www.sciencedirect.com/science/article/pii/S0264410X25005882

#VaccineSafety #COVID19 #GBS #ScienceMatters #GVDN #Vaccines

Your seasonal reminder! COVID-19 is still circulating, so make sure you are up to date with your shots! Getting boosted won't do you any harm- just ask this guy https://medicalnewsbulletin.com/how-many-covid-vaccine-boosters-can-i-get/ #vaccinesafety #preventativemedicine #covid

#FYI #US #USA #disease #diseases #AMA #ACIP #AmericanMedicalAssociation #ToddUnger #SandraFryhofer #vaccines #vaccination #vaccinesafety #CDC #FDA #measles #RSV

"Are vaccines safe? How long have vaccines been around? What is ACIP? Is there a booster for RSV? How old is the measles vaccine? What happens at ACIP meetings?

What are the latest vaccine recommendations? Sandra Fryhofer, MD, AMA’s liaison to the ACIP, shares news from the most recent meeting. "

https://www.youtube.com/watch?v=sGb87HWp0fs

James G. Hodge, Jr. gives incisive insights on legal threats to #vaccination, as well as lines of defense, in "Legal Underpinnings of the Great Vaccine Debate of 2025," now available on FirstView. #vaccines #VaccineEffectiveness #VaccineSafety www.cambridge.org/core/journal...

James G. Hodge, Jr. gives incisive insights on legal threats to #vaccination, as well as lines of defense, in "Legal Underpinnings of the Great Vaccine Debate of 2025," now available on FirstView. #vaccines #VaccineEffectiveness #VaccineSafety www.cambridge.org/core/journal...

Combatting the measles threat means examining the reasons for declining vaccination rates
#Health #Canada #Measles #Vaccination #PublicHealth #VaccineSafety #MMR #Immunization #StopMeasles #CommunityHealth #ProtectOurKids #Outbreak #Threat #Vaccination
https://the-14.com/combatting-the-measles-threat-means-examining-the-reasons-for-declining-vaccination-rates/

...and the worms • ate into • his brain. WE DON'T NEED NO EDUCATION!!

#vaccine #vaccines #cdc #fda #vaccination #publichealth #RFKJr #trump #ushealth #polio #dtap #tdap #pertussis #whoopingcough #ironlung #brainworm #brainworms #nematode #vaccinesafety

Protect the unborn
Maternal RSV vaccine now
Third trimester's the time

#rsvvaccine #pregnantpeople #vaccinesafety #haiku #poetry

https://www.medicalnewstoday.com/articles/rsv-vaccine-during-pregnancy

Health-wise, Spike protein production post-translation is robust, indicated by Spike-specific T cells and antibodies. Authors stress no reported adverse outcomes from mRNA vaccine mistranslation in humans. Important for vaccine safety. #mRNAvaccines #COVID19 #VaccineSafety
4/17

N1-methylpseudouridylation of mRNA causes +1 ribosomal frameshifting

mRNA such as used in vaccines has been modified to decrease immunogenicity and enhance stability. Does it affect translation? #mRNAvaccines #COVID19 #VaccineSafety

https://doi.org/10.1038/s41586-023-06800-3
1/17

Vaccines
Safe still to this day
Protected, fighting, reliable
Immunity, trust, prevent
COVID

#covidvaccine #vaccinesafety #drrivkees #covid #cinquain #poetry

https://abcnews.go.com/Health/former-florida-surgeon-general-rebukes-desantis-administrations-claims/story?id=103231693

Josh Stirling: Dissecting Excess Death Data #vaccinesafety
https://odysee.com/@SubversionDiversion:8/Josh-Stirling-Dissecting-Excess-Death-Data:8

Excellent Covid vaccination safety data during pregnancy from Dr Viki Male with link to her google doc data.
#pregnancy #COVID19 #VaccineSafety #vaccination #Scicomm #science

https://docs.google.com/document/d/1_wHIYX-tGkGBPwuax7N8BxZPR4PTTCDm/mobilebasic

https://rumble.com/v243z9q-full-episode-61-the-man-who-built-a-movement.html #autism #vaccinesafety

Why we chose to get vaccinated: a personal perspective

As someone who has been very proactive in getting myself and my family vaccinated, I understand the importance of protecting ourselves and those around us from COVID-19. Leading by example is always a good thing, and getting vaccinated is a simple but meaningful way to do so.

Filip Dubovsky is an infectious disease physician.

https://youtube.com/shorts/vZ0YHnZe_d8

Listen here: https://kevinmd.com/podcast

#VaccinesWork #VaccineSafety #COVIDVaccine

#vaccinesafety #mrna #fauci #diedsuddenly #AnthonyFauci
https://rumble.com/v21vzsu-the-real-anthony-fauci-movie-pt.-1.html

CDC-published articles and studies on vaccine safety:
https://www.cdc.gov/vaccinesafety/research/publications/index.html
#vaccines #vaccinesafety

J&J boosters get nod from FDA advisors as agency eyes mix-and-match - Enlarge / Boxes of Johnson & Johnson's Janssen COVID-19 vaccine at ... - https://arstechnica.com/?p=1804634 #johnson&johnson #vaccineefficacy #vaccinesafety #covid-19 #science #booster #vaccine #fda

Here’s all the data on myocarditis cases linked to COVID-19 vaccines - Enlarge / MELBOURNE, FLORIDA, 2021/05/17: A nurse gives a 16-year-old a COVID-19 ... - https://arstechnica.com/?p=1776140 #infectiousdisease #vaccinesafety #myocarditis #sideeffects #covid-19 #science #mrna #cdc

Rumble — CELEB EXPOSES FAUCI’S MISINFORMATION
Mexican actor and director, Eugenio Derbez, took part in an Instagram Live Q&A with Anthony Fauci this week and asked many hard hitting questions about the #Covid19 vaccine. Jefferey and Del pick apart the tidal wave of misinformation Fauci unleashed, from the experimental shot’s FDA approval and injury liability, to herd immunity and new variants.
#EugenioDerbez #Fauci #IGLive #Covid19 #VaccineSafety #HerdImmunity #VaccineInjury #TheHighwire #DelBigtree #FireFauci

https://rumble.com/vek3jh-celeb-exposes-faucis-misinformation.html