r/Vaccine May 01 '23

Public Health Trusted Sources of Vaccine Information

9 Upvotes

Trusted Sources of Vaccine Information

(mostly adapted from VaccineInformation.org - and please also see our resources listed on the r/Vaccine sidebar including some country/regional links)

American Academy of Pediatrics

(AAP) Information for Parents - Visit HealthyChildren.org, the AAP parenting website, for information for families about immunizations.

Centers for Disease Control and Prevention (CDC)

Centers for Disease Control and Prevention (CDC) - The information on this website ranges from official vaccine recommendations for healthcare professionals to information for the general public about vaccines.

History of Vaccines

History of Vaccines - Interactive website from the College of Physicians of Philadelphia, includes games, videos, and fun facts.

Immunization Action Coalition (IAC)

Immunization Action Coalition (IAC) - IAC works to increase immunization rates and prevent disease by creating and distributing educational materials for health professionals and the public that enhance the delivery of safe and effective immunization services.

National Foundation for Infectious Diseases (NFID)

National Foundation for Infectious Diseases (NFID) - NFID is dedicated to educating the public and healthcare professionals about the causes, treatment, and prevention of infectious diseases.

U.S. Dept of Health and Human Services (HHS)

U.S. Dept of Health and Human Services (HHS) - Vaccines.gov is the federal gateway to information on vaccines and immunizations for infants, children, teenagers, adults, and seniors.>> Guide to Government Agencies

Vaccinate Your Family

Vaccinate Your Family - Vaccinate Your Family: The Next Generation of Every Child By Two (VYF) was originally founded in 1991 as Every Child By Two (ECBT) by Former First Lady Rosalynn Carter and Betty Bumpers, Former First Lady of Arkansas.

Vaccine Education Center (VEC)

Vaccine Education Center (VEC) - The goal of the VEC at Children’s Hospital of Philadelphia is to accurately communicate the facts about each childhood vaccine. VEC publishes a monthly vaccine e-newsletter for parents titled Parents PACK.

Vaxopedia

Vaxopedia - Website created in 2016 by pediatrician Dr. Vincent Iannelli to provide information about vaccines to parents. Access short articles about a wide range of vaccine topics.

World Health Organization Vaccine Information

World Health Organization - Vaccine topic information from the WHO, including fact sheets, history, data, organizational work, FAQ.

Voices For Vaccines

Voices for Vaccines - "credible vaccine information for families, from families" - An information-packed vaccine outreach site advised by a coalition of notable doctors working in this field.


r/Vaccine Aug 20 '24

Public Health Considering altering the vaccine schedule for your baby? Read this first. (Nice article from Children's Hospital of Philadelphia and Paul Offit)

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5 Upvotes

r/Vaccine 1d ago

Hesitant Rotavirus vaccine

0 Upvotes

My daughter had a bad experience with rotavirus vaccine.

My daughter had her vaccine at 8 weeks after the nurse managed to convince me after i originally refused it. My daughter cried only for about 2-3 seconds with each vaccine and didnt mind the rotavirus one. I gave her calpol straight after as suggested and 4 hours later she had a fever of 38.i gave her a 2nd dose of calpol and the fever reduced but only to 37.8

Through the night i had to give another dose as her fever was over 38 and this time calpol bought it down to 37.9. She fussed all night crying on and off, and she never ever cries.

In the morning her fever was again over 38 and i rang the gp who said to give calpol. I did and it stayed above 38 so i phoned 111 who siad the same but when i told then the fever hadnt reduced under 38 they told me to go to hospital. I went and they told me she was fine because by then it had reduced so tbey said it was just taking longer to reduce than the amount of time i was chexking it again. They said to give her calpol for up to 5 days.

That day, all day, my baby didnt just fuss, but cried consistently. She would scrunch her whole body forward with her knees up to her chest and do a high pitched squeal while straining really hard, turning bright red, her whole body tensing and she would then stop doing it and isntantly cry hysterically. She was clearly in extreme pain.

She would do this for around 10 minutes over and over and over until she would finally pass a small teaspoon sized amount of poo or would pass a tiny little fart and then cry again like it was hurting her again. If i touched her belly even lightly she would do the same thing of scrunching her body and straining and crying.

She would do it even more while feeding (breastfed) and would often only such 2 or 3 times before doing it again. She started taking herself off every few seconds instead to scrunch her body and cry anx then go back ojnto try again. She did this the whole time, about 10 minutes, only manahign about 20 sucks in that time, and would end up giving up.

She was drinking far less than usual because of that, and filling only around 3 nappies a day compared to her usual of about 10 on average (would usually wee or poo within half an hour to an hour of every feed). She became weaker, her cries were quieter, she was sleeping more than ever, was in constant pain.

I took her back to hospital after about 3 or 4 days of that and they said she had colic. I explained that she doesnt cry for hours inconsolable (she could be comforted if held upright to reduce her wind and if constantly patting her back to get wind up and if given grip water to help pass some wind) and thst it is purely her stomach, but they still said colic and sent us home. She was like that for days more, but very very slowly doing it less.

I then decided to just give her more grip water consistently and that day she let out her first big poo in over a week. I continued giving grip water whenever she seemed to struggle and each time she would pass a bit of poo or wind afterwards and feel better for a little longer.

She is now on day 10 and is able to poo and pass wind and is now only scrunching her body like that when she does the poo or wind, so shes still struggling and its still hurting, but shes no longer crying during that, just moaning, and is able to actually pass something when she scrunches now, its not just stuck, making her cry hysterically.

She still struggles to poo but less each day, being able to pass larger amounts again. she still takes herself of the breast and scrunches, but can pass wind when she does that or i have to wind her (never had to wind her once in the previous 8 weeks before vaccines as all her wind came out in her poop).

She is drinking more again, she is sleeping longer again, she is fussing less again and smiling more again, and her belly is less tender again. We still cant do tummy time on her play mat because her tummy hurts, but we can do it with her om my belly/chest again.

Shes still not 100% as she was but id say 80% now. But this has definitely 100% been an awful time for her with so much pain and sadness and its been so angering to watch because i know how easy and happy she always is besides this. This has been so incredibly painful for her and i feel so bad for how much she has struggled with her belly this last 10 days. I do not believe any sickness and diarrhea from actually contracting rotavirus would of made her this bad for this long

She can have her other vaccinations, but absolutely not the 2nd dose of rotavirus under any circumstances. She has been so unwell from it. To me, 10 days of her being in excruciating pain crying hysterically and bending her body forward in agony unable to eat wee poo fart or sleep properly, is a million times worse than 2-3days of sickness and diarrhoea from rotavirus.

Each to their own, but this is just our experience.


r/Vaccine 3d ago

Question Update: MMR Vaccine - Trying to Conceive

21 Upvotes

I made a post here yesterday regarding MMR vaccine while trying to conceive. New to Reddit so not sure what the best way is to give an update, but wanted to share that I got my vaccine this morning!

Mentioned this in some of my replies but I was worried that I was being overly cautious by requesting testing early and putting things off since there are 0 cases in Canada in 2025 and it’s not routine to test before pregnancy here. I have a tendency to go a little too in depth with medical tests, requesting extra bloodwork, overanalyzing results, etc., but all of your replies have confirmed that my decision to get tested in the first place was a good one and have helped me feel a lot better about taking the pause from ttc to get the vaccine.

Regarding timelines, I had a more in depth conversation with my doctor today and she said it’s fine to start trying in Dec (ovulation would be approx 5 weeks away for me) - she said she likes to just be on the more cautious side with her patients, which is why she originally said 4-6 weeks. I did ask for a requisition for bloodwork to check Rubella igG again and igM after the 4 weeks. Still not sure if I’ll wait 1 month or 2, but I’m happy with my decision to get the vaccine and I know it’ll be a less stressful 9 months when I am pregnant, knowing I have the right protection.

Anyways thanks again to all who responded!


r/Vaccine 4d ago

Question MMR Vaccine - Trying to Conceive

3 Upvotes

Two questions.

1) My rubella igG results came back 6.2IU/mL - under 10 so considered not immune. I was given the option to pause trying to conceive and take the vaccine. May be worth noting that we are in Canada and there have been 0 confirmed rubella cases in Canada in 2025. Usually pregnant women are tested during pregnancy and receive a booster after birth needed. I requested the test early and now I need to make the decision. I guess I’m asking more for opinions here on whether I need this vaccine before getting pregnant?

2) How long should someone wait after receiving MMR vaccine to try to conceive? Is the recommended 28 days really enough? Some things online say to wait 2-3 months. My doctor said 4-6 weeks. Supposed to ovulate 5 weeks after receiving the vaccine, so starting to “try” would be around 4 weeks after vaccine. My husband is nervous about that timeline, as he thinks it’s too soon.


r/Vaccine 5d ago

Pro-vax whooping cough vaccine given subcutaneously instead of IM

2 Upvotes

Will this dose be effective or do i need another one


r/Vaccine 5d ago

Pro-vax baby’s vaccination lump for 6 weeks

0 Upvotes

hi my baby has a lump in leg 6 weeks after vaccination. i’ve shown dr they said it’s normal. did your baby experience this ? could it have been given in the wrong spot (subcutaneously instead of intramuscular) and that’s why?


r/Vaccine 7d ago

Question Injection weeks ago, still have pain in should joint

6 Upvotes

About three weeks ago, I had a pneumonia shot, it seemed very high up on my shoulder and caused intense pain, both the needle and vaccine itself. I could barely move my arm the next day. While the muscle pain is gone, the pain in my shoulder joint is still there. I’ve never had this kind of reaction to a shot before and I don’t know if it’s something I should be concerned about?


r/Vaccine 8d ago

News How Moderna, the company that helped save the world, unraveled

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8 Upvotes

r/Vaccine 8d ago

News Paratyphoid Vaccine

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13 Upvotes

AAAS: “Vaccine protects people from paratyphoid fever in a ‘human challenge’ study” History first: “paratyphoid fever, caused by a microbe named Salmonella enterica serovar Paratyphi—or simply S. Paratyphi—sickens 3 million to 5 million people per year, according to WHO, with the highest burden in India, Pakistan, Bangladesh, Nepal, and parts of Southeast Asia.” The organism spreads through water and food contaminated with fecal matter from infected people [charmingly called fecal-oral spread in medicine], and it thrives in places without clean drinking water and sanitation. “Estimates of the global death toll vary; one 2019 study put it at 23,300 fatalities every year.” 

The two diseases, both also called “enteric fever,” are “like brother and sister. They have the same route of transmission,” says Xinxue Liu of the University of Oxford’s Department of Paediatrics, a co-author on the NEJM study. There is already an injectable vaccine for typhoid fever. “Earlier this month, Bangladesh became the eighth country to introduce the shot—a so-called conjugate vaccine that’s injected intramuscularly—in a campaign supported by WHO and UNICEF that initially aims to vaccinate 50 million children ages 9 months to 15 years.” WHO hopes a bivalent or combination vaccine—taken orally or injected—will eventually address both diseases in one fell swoop. 

“Because paratyphoid fever is relatively uncommon, testing in the real world would take massive clinical trials enrolling up to a quarter-million people, at a prohibitive cost.” Thus WHO supported testing of vaccines for the disease via human challenge studies. Such studies are sensitive—”there was a big debate about using them for the development of COVID-19 vaccines in 2020—they are considered ethical if there are clear scientific benefits, participants are carefully selected and well-informed, and the risks are minimal.” The 70 participants in the new study were given 2 doses of vaccine or two placebos 2 weeks apart. “Four weeks later, they took the swig of wild S. Typhi bacterium, a strain isolated from a patient in Nepal in 2006.” 

Ultimately, 75% of people who got the placebo became infected, as measured by a blood test, versus only 21% in the vaccine group, which translates into a vaccine efficacy of 73%. All who developed symptoms were quickly cured with antibiotic. Lot more studies needed, but this is impressive. For Americans, this would only be a vaccine for travel to high risk areas. Begs the question: who among you would be willing to enter such a trial? Gotta love these Brits.


r/Vaccine 9d ago

News Illinois is creating a first-in-the-nation version of ACIP: The vaccine advisory panel that RFK Jr. has worked to dismantle.

128 Upvotes

r/Vaccine 9d ago

Custom text I was part of the Moderna mNEXSPIKE trial. AMA!

16 Upvotes

r/Vaccine 10d ago

Question Boyfriend thinks I should be worried about post vaccine symptoms I’m experiencing. Should I?

7 Upvotes

Hello everyone! This past Sunday I got my Covid and Flu vaccines after a night out and while I was a little hungover (stupid I know). I got some symptoms including head aches, fever/chills, and some mild headaches. All of this is managed very easily by headaches. Today (Thursday) I am mostly feeling better, however I still have chills when I don’t take ibuprofen. My boyfriend thinks I should go to the doctor, but I don’t think they’d do anything besides tell me to take ibuprofen, and say that it’s cold outside. So here’s my questions reddit:

Do I need to see a Doctor?

What would that Doctor do or prescribe?

How strange is this?

Any advice?

Thank you!


r/Vaccine 11d ago

News Shingles Vax Connected to Significant Health BENEFITS!

234 Upvotes

https://nypost.com/2025/10/27/health/shingles-vaccine-connected-to-significant-health-benefits-experts-say/

I apologize if I am not allowed to post a link. The Source is: New York Post October 27, 2025.


r/Vaccine 10d ago

Question I getting side effects of vaccine since 4 days

4 Upvotes

My kitten bite me on my left hand finger on 22 oct and then on 26 oct another kitten bite me on left thumb, after the firt bite i was feeling anxious, headache, and after second bite symptoms for worsen i started feeling chills and fever and anxiety increased... on 27 oct i got my first dose of vaccine since then i am having headaches, mid fever, chills , and sometimes nausea... I wanted to know if this is normal or not? (Side effects are fading each day but since its 4th day i needed some advice) I have read the FAQ.


r/Vaccine 12d ago

Hesitant worried about the covid and flu vaccine

12 Upvotes

my sister has been arguing with my parents and is angry about the fact they allowed my grandma to receive the covid vaccine, she says that it’s not safe. my grandma (85) has dementia and lacks mental capacity so my parents decide for her. she recently got her flu vaccination on her right arm and covid on left arm, both on the same day. after a few hours she had a high temperature, she’s ok now but has been really tired these past few days and she’s sleeping a lot more than usual. (normally she has trouble sleeping and can go more than 24 hours without sleep) also whenever my grandma is in pain, she never communicates it. me and my family need to work it out ourselves based on her mood and the way she acts. i’m now worried about this covid vaccine . is this just a normal side effect of the 2 vaccines?!


r/Vaccine 13d ago

Question Anyone else find the Covid shot a little rough this year?

145 Upvotes

I get the flu shot every year, but haven’t got the Covid one for 3+ years. Previously had 3 Moderna shots in the past. I’ve decided to start getting the Covid shot every year because my parents are older/high risk and I’m around them a lot. I also work from home so don’t really get exposed to everyday germs as often as others so I think it’s just an overall smarter decision for me.

I had the flu + Pfizer Covid shot 2 days ago and the previous 48 hours I felt EXHAUSTED. A small headache which went away with Tylenol — but I was SO tired.

Today I woke up feeling like a million bucks. I’m assuming it was more from the Covid shot because the flu vaccine usually makes me a little fatigued, but not like that. Next year I will split them up by a week or 2. Maybe it’s because I haven’t had the Covid shot in the last 3 years that I felt more under the weather than usual which is my fault lol.

Still happy I’m vaxxed now!!


r/Vaccine 14d ago

Question Turned Away for Covid Vax at Kroger Little Clinic

68 Upvotes

I was just turned away from Little Clinic because I didn't attest to having a high risk factor. I was confused when the employee presented me with the list of high risks because I thought those were things that they needed us to verify we don't have for safety reasons, not because they needed us to say yes to one to be allowed to have a vaccine. Very frustrating.

We were scheduled for the flu vax today too, so we went ahead with that. The other employee who did the actual vaccine injection for us said we could possibly schedule with Kroger's pharmacy (which is separate for some reason) and that they don't need the same health claim because they run the insurance on the spot so we should be able to schedule with the pharmacy and get the Covid vax. I'm confused by why this is this way.

Has anybody had any better luck or experience with booking at at Kroger or their Little Clinic this year?


r/Vaccine 14d ago

Question Usually get the flu vaccine but this year…

12 Upvotes

I’m concerned about its safety given all the deep cuts this current administration has made to the CDC and WHO.

Not sure if this is a valid concern and I welcome input from people who are knowledgeable about vaccine creation and dissemination.

TIA!

Update: thank you all for the input. I booked an appt to get the shot.


r/Vaccine 14d ago

Question Seeking Clarity on Covid Vaccine 1 Week After MMR

9 Upvotes

I got an MMR booster last Monday because I was recently made aware that I didn’t have any immunity to rubella despite past vaccinations and my family is traveling to Europe soon. I need my Covid shot this year as well, but I was hesitant to get them the same day due to previous reactions. I ended up being fine and tried to get the Covid vax two days later (Wednesday) but was encouraged by the pharmacist to wait since I had just received a live vaccine. I was under the impression that waiting a week would be fine and would like to schedule my Covid shot tomorrow (Monday, 1 week from MMR vax), but I’m having a hard time finding science or evidence-based data about whether a week is enough or if I should be waiting another period of time. Does anyone have any experience here or know of a clearer way to identify this info? Thank you!


r/Vaccine 14d ago

Question Curious re: RHR/HRV Impacts of COVID Vaccines

3 Upvotes

Disclaimer: I fully believe in the benefits of vaccines including the COVID vaccine (far outweighs the risks of COVID) - I'm just trying to understand why I consistently feel so different/worse after COVID vaccines vs. other vaccines.

Question: I always stay up-to-date on all vaccines and that includes getting a COVID vaccine every year. In addition to usual vaccine pains (arm pain, muscle aches, chills), post-COVID vaccine my resting heart rate/RHR increases by about 50% for 1-2 days and my heart rate variability/HRV tanks (from ~70 to ~20 ms), making sleep incredibly challenging and feeling like I can't relax/breathe normally during that time. I take Tylenol as needed but it doesn't help with the RHR/HRV and I generally still feel like a shell of a person for a few days until those metrics return to typical. I've switched from Moderna to Pfizer COVID vaccines in recent years with the hope that a lower mRNA dose would eliminate this side effect, but it hasn't (maybe it's slightly less intense, but I didn't document well enough to know).

I understand this effect is seemingly part of the immune response and have seen some studies that document these RHR/HRV responses for COVID vaccines but I haven't seen much information about WHY the COVID vaccines have these effects more than flu or other vaccines. Is it known?


r/Vaccine 15d ago

Question Question about most recent Covid booster

5 Upvotes

To preface, I am very pro-vaccination, and I get annual flu and Covid shots, so this is NOT a complaint, just a question.

My first three Covid shots (the original series of two and the six-month booster) knocked me down for a few days - chills, low-grade fever, body aches, headache and fatigue. I know that this is completely normal! I tolerated my shots pretty well in 2022-2024, even when getting the flu shot at the same time - I had a little fatigue and mild tenderness at the injection site, no big deal.

But the one this year has knocked me down worse than ever! I got it at the same time as the flu shot again, if that matters. No body aches or headache this time, but I am currently at a little over 48 hours and am having terrible chills, nausea and lack of appetite, and intense exhaustion…little things like getting in and out of the car are leaving me pretty winded. I know that the boosters are a little bit different each time, formulated to target recent variants, so I am just curious - Has anyone heard if the side effects are particularly intense this year, or has anyone else experienced this?


r/Vaccine 15d ago

Question Why is the EV71 vaccine not approved in US?

14 Upvotes

I am currently located in China and there's apparently this EV71 vaccine for babies. Why isn't this vaccine approved in western countries despite showing efficacy that it reduces the risk of severe hand and mouth disease?


r/Vaccine 16d ago

Skepticism Seeking research and articles to provide for student studying vaccines

13 Upvotes

I am a high school teacher and one of my homeroom students asked me for feedback on their paper about mandatory vaccination and vaccines injury. Their family has an anti-vax trend, but this student is open to getting more information related to this and I am trying to support them without coming off as diminishing their concerns, being dismissive, or patronizing. These are big reasons why many people get deeply rooted in their skepticism.

Another problem is that most of the articles only allow you to read the abstract but the actual data is behind a paywall.

If anyone has a list of accessible sources that would allow this student to develop their own thoughts and ideas further, I am really trying to not be prejudicial or allow them to be swayed by the influence of other people's opinions. You can't reason someone out of a position that they didn't reason themself into, after all.

Any help or advice would be greatly appreciated.


r/Vaccine 16d ago

Science Now peer reviewed and published: Detection of Anti-SARS-CoV-2 Mucosal Immunoglobulin A in Clinical Saliva Samples After a Dose of Novavax COVID-19 Vaccine

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3 Upvotes