Is there vaccine non-effectiveness?

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SUMMARY

Vaccine non-effectiveness can occur due to two primary factors: vaccine-related issues and host-related factors. Vaccine-related failures include problems with vaccine attenuation, administration, or vaccination regimes. Host-related factors encompass genetics, immune status, age, health, and nutritional status, which can lead to both primary and secondary vaccine failures. Specific cases, such as elderly populations requiring higher doses of influenza vaccines and individuals not producing antibodies after vaccination, exemplify these failures.

PREREQUISITES
  • Understanding of vaccine attenuation and administration protocols
  • Knowledge of host genetics and immune response mechanisms
  • Familiarity with factors affecting vaccine efficacy in different populations
  • Awareness of vaccination regimes and their implications
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  • Research the mechanisms behind vaccine attenuation and its impact on efficacy
  • Explore the role of host genetics in vaccine response
  • Investigate the specific vaccination needs of elderly populations
  • Study the implications of primary and secondary vaccine failures
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Healthcare professionals, immunologists, vaccine researchers, and public health officials seeking to understand vaccine efficacy and the factors influencing individual responses to vaccination.

icakeov
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Hello, is there such a thing as a vaccine “not having any effect” on a person, and for some reason making it a “dud” for that specific person?

I guess if the dose isn’t strong enough that could be the case, but is there such a thing of the person not “reacting” to those antibodies for some reason, or rejecting them? Or some other reason why a vaccine "wouldn't work" on a specific person.
 
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4962729/Abstract
There are 2 major factors responsible for vaccine failures, the first is vaccine-related such as failures in vaccine attenuation, vaccination regimes or administration. The other is host-related, of which host genetics, immune status, age, health or nutritional status can be associated with primary or secondary vaccine failures. The first describes the inability to respond to primary vaccination, the latter is characterized by a loss of protection after initial effectiveness. Our studies concentrate on the evaluation of immunological characteristics responsible for primary vaccine failures in different (risk) populations for which the underlying mechanisms are currently unknown. Here we summarise current knowledge and findings from our studies...

Note that "type 2" failure has components - failure to immunize, failure to maintain resistance.
Elderly populations normally require greater doses of influenza vaccine, a kind of failure to immunize.
 
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Yes, this does happen.
I have had a Hepatitis B vaccine that I did not produce antibodies to.
I should repeat it.
 
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Many thanks!
 
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As child, before I got my first X-ray, I used to fantasize that I might have a mirror image anatomy - my heart on the right, my appendix on the right. Why not? (Caveat: I'm not talking about sci-fi molecular-level mirroring. We're not talking starvation because I couldn't process certain proteins, etc.) I'm simpy tlakng about, when a normal zygote divides, it technically has two options which way to form. Oen would expcet a 50:50 split. But we all have our heart on the left and our...

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