do vaccinations during pregnancy really protect the baby? - Mothering Forums
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#1 of 9 Old 09-26-2013, 11:09 AM - Thread Starter
 
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I'm 23 weeks pregnant and my doctor advised me to get the flu vaccine and tdap while pregnant to help protect the baby. Are there actual studies out there with proof that vaccinating while pregnant is beneficial to the baby? I had a tdap booster 2.5 years ago, so I should be "protected". But I feel leary of getting vaccinated while pregnant.
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#2 of 9 Old 09-27-2013, 02:32 PM
 
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How funny, we were JUST discussing this over at fully-vaccinating. Yes, your antibodies will transfer over to the baby and can protect them from pertussis: http://www.ajog.org/article/S0002-9378(10)02286-6/abstract and http://www.thelancet.com/journals/laninf/article/PIIS1473-3099(07)70113-5/abstract?refuid=S0002-9378(10)02286-6&refissn=0002-9378. Safety also seems reassuring (http://www.sciencedirect.com/science/article/pii/S0002937812005042), although the way they write their abstract makes it sound awful; they looked at events reported via VAERS and then did statistical magic; looks like the rate for adverse events after the TDaP is the same in vaccinated and unvaccinated folks (15-20% of vaccinated women spontaneously abort; so do 15-20% of unvaccinated women). Unfortunately that's only clear in the full text which I can access via my university, but I cannot give it to you. 

 

As far as flu, it's been VERY studied for safety: 

http://www.ncbi.nlm.nih.gov/pubmed/23262941, and http://www.ajog.org/article/S0002-9378(04)02102-7/abstract, and also clearly works to protect the baby: http://www.nejm.org/doi/full/10.1056/NEJMoa0708630

 

I just got the flu shot, personally (14w3d) and will be getting the TDaP, too. 

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#3 of 9 Old 09-28-2013, 06:11 PM
 
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Yes, they do get your antibodies, and will through your breastmilk as well.

 

But, in terms of protecting your baby, the doctor may be referring to protecting your fetus from the potential harm that could come to it if you were to contract the flu yourself.

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#4 of 9 Old 09-28-2013, 09:17 PM
 
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I was just looking at this piece from the CDC about the Tdap vaccine. They discuss, among other things, the antibodies from the mother being transferred to the baby and what the antibody levels are like at different times following the shot. There are also primary source references. It's long but worth reading imo. http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6207a4.htm


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#5 of 9 Old 09-29-2013, 12:33 PM
 
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Originally Posted by MichelleZB View Post
 

Yes, they do get your antibodies, and will through your breastmilk as well.

 

The more I'm looking at this, the less it looks like pertussis antibodies are taken up by breastfeeding babies.  They are present in human breastmilk, but don't appear to increase antibody levels in the babies.  Antibodies are transferred in other mammals - most other mammals, I believe.  Just not humans.  Weird, right? 

 

So if you want this strategy of passing on antibodies, it makes sense to get it during pregnancy rather than after.

 

Quote:
Originally Posted by erigeron View Post
 

I was just looking at this piece from the CDC about the Tdap vaccine. They discuss, among other things, the antibodies from the mother being transferred to the baby and what the antibody levels are like at different times following the shot. There are also primary source references. It's long but worth reading imo. http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6207a4.htm

 

I had been considering skipping the TDaP since I got it exactly 2 years ago, but this report caused me to reconsider.  The other thing that jumped out at me was when do get the TDaP.  From the same report:

Quote:
 Active transport of maternal immunoglobulin G does not substantially take place before 30 weeks of gestation (34)

 

The general recommendation is to wait until the 3rd trimester, which is 28 weeks, right?  I think I will wait a couple more to get it.

 

Does anyone know if timing is just as important with the flu shot?

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#6 of 9 Old 12-18-2013, 09:45 PM
 
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Vaccinating while pregnant can be very harmful and cause birth defects.


Traditional & nutrient-dense foods/Weston A. Price Foundation advocate, Reiki II practitioner, EFT practitioner, past life & life between lives Hypnotherapist practitioner. Home birth with DD 2007 = never vaccinated, breastfed 3 years

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#7 of 9 Old 12-18-2013, 11:32 PM
 
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Originally Posted by MyLilPwny View Post

Vaccinating while pregnant can be very harmful and cause birth defects.

Do you have any links that show that vaccines during pregnancy cause birth defects - it's one of those statements that are best believed with some concrete backup.
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#8 of 9 Old 12-19-2013, 07:15 AM
 
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Look up the ingredients in vaccines. Toxic chemicals. Are toxic chemicals safe to eat? Or inject directly into the blood stream? What can toxic chemicals cause inside a rapidly growing fetus? Birth defects.

Traditional & nutrient-dense foods/Weston A. Price Foundation advocate, Reiki II practitioner, EFT practitioner, past life & life between lives Hypnotherapist practitioner. Home birth with DD 2007 = never vaccinated, breastfed 3 years

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#9 of 9 Old 12-19-2013, 07:32 AM
 
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Originally Posted by TCMoulton View Post


Do you have any links that show that vaccines during pregnancy cause birth defects - it's one of those statements that are best believed with some concrete backup.

Well, rubella vaccine during pregnancy for one.  CDC source.   a

 

I know the OP is on pertussis and flu vaccines, but I thought I would throw that out there as both you and Mylilpwny seem to be talking in amore general way.  


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