COVID-19 Vaccine Booster Effectiveness Quickly Wanes: Study

The effectiveness of COVID-19 vaccine booster doses dropped well under 50 percent after four months against subvariants of the virus that causes COVID-19, according to a new study from the U.S. Centers for Disease Control and Prevention (CDC).

The Moderna and Pfizer vaccines provided just 51 percent protection against emergency department visits, urgent care encounters, and hospitalizations related to COVID-19 during the time BA.2 and BA.2.12.1, subvariants of the Omicron virus variant, were predominant in the United States, CDC researchers found.

Both vaccines are administered in two-dose primary series.

After 150-plus days, the effectiveness dropped to just 12 percent.

A first booster upped the protection to 56 percent, but the effectiveness went down to 26 percent after four months, according to the study, which drew numbers from a network of hospitals funded by the CDC across 10 states called the VISION Network.

The subvariant was predominant between late March and mid-June.

Pfizer and Moderna did not respond to requests for comment.

The effectiveness was lower against BA.2 and BA.2.12.1 than against BA.1, which was displaced by BA.2.

Against BA.1, the vaccines provided 44 percent protection against the healthcare visits linked to COVID-19 initially and 39 percent after 150 days. A first booster increased the protection to 84 percent, and the protection barely decreased for patients 50 years or older after four months. But for people aged 18 to 49, the protection plummeted to 29 percent after 120 days.

Underlining the waning effectiveness against severe illness, the majority of patients admitted to the hospitals between December 2021 and June 2022 had received at least two doses of the vaccines.

Further, the percentage of unvaccinated patients dropped during the later period, going from 41.6 percent to 28.6 percent (hospitalized patients) and from 41.4 percent to 31 percent (emergency department and urgent care patients), researchers found.

The researchers, some of whom work for the CDC, theorized that the protection—known as natural immunity—many unvaccinated people enjoy from having had COVID-19 could be a factor in the drop in effectiveness of the vaccines, even though adults with documented prior infection were excluded from the study.

“If unvaccinated persons were more likely to have experienced recent infection, and infection-induced immunity provides some protection against re-infection, this could result in lower VE observed during the BA.2/BA.2.12.1 period,” they wrote. VE stands for vaccine effectiveness.

“Although adults with documented past SARS-CoV-2 infection were excluded, infections are likely to be significantly underascertained because of lack of testing or increased at-home testing. In addition, although time since receipt of the second or third vaccine dose was stratified by time intervals, on average the time since vaccination was longer during the BA.2/BA.2.12.1 period,” they added.

SARS-CoV-2, also known as the CCP (Chinese Communist Party) virus, causes COVID-19.

The CDC published the research in its quasi-journal, the Morbidity and Mortality Weekly Report. Most articles it publishes are not peer-reviewed, and the articles are shaped to reflect CDC policy.

Top U.S. officials are considering authorizing second booster doses, or fourth doses, for all Americans. They’re currently only available to Americans aged 50 and older.

A second booster increased protection for that age group from 32 percent to 66 percent, according to the new study. But those who received a fourth dose were only followed for a median of 27 days. Other research has indicated that the protection from a fourth dose quickly wanes as well.

See more here: theepochtimes

Bold emphasis added

Please Donate Below To Support Our Ongoing Work To Expose The Lies About COVID19

PRINCIPIA SCIENTIFIC INTERNATIONAL, legally registered in the UK as a company incorporated for charitable purposes. Head Office: 27 Old Gloucester Street, London WC1N 3AX. 

Trackback from your site.

Comments (7)

  • Avatar

    richard

    |

    A few people I know who have had the jab don’t seem to concerned about having a booster. Fears of adverse reactions seem to be sinking in.

    Reply

  • Avatar

    Russ D

    |

    I still support all Liberals/Demonrats, BLM activists, CRT proponents, and LGBTQ participants to get the clot shots and all available boosters…….ASAP!!!!!!!!!!!!

    Reply

  • Avatar

    VOWG

    |

    I have read about the wanning effectiveness of the vaxxes since day one. They never had any efficacy ever, zero efficacy. Stupid people playing dangerous games.

    Reply

  • Avatar

    Tom

    |

    They cannot prove there was any protection at all to begin with. I have not had and never will have any injections and I am not sick or dead. Where is the control group from the initial trials that might substantiate this claim that these mRNA gene therapy injections work at all? A per standard procedure, big pharma has demolished the control groups well before the trials were to end in 2023. This is typical practice for many drug trials…just ask that retarded fauci character, or the FDA or CDC.

    Reply

  • Avatar

    Richard Noakes

    |

    The Lancet reported that the ARR of Pfizers vaccine, for example, was advertized at 94%, but The AAA – the actual efficiency of the Pfizer vaccine was just 0.87%, with Covid having a 99.13% chance of infecting you and potdentially killing you and all of the other vaccines, at that time, fell in the AAA range of 087% to 1.5 % which was Astrazeneca.
    Interestingly, in another article, the Novax formula is the same as the one for the Spanish Flu vaccine after World War One, where everyone who had it, later died.
    In 2013, the US Supreme Court passed a law that everyone who was mRNA or RNA vaccinated, ceased to be human and all human rights were lost and became a new life form, Trans Human, for which no human legal rights applied – my take on that is 6 hours after injection, the Patented Experimental mRNA Synthetic Gene Therapy Vaccines change your DNA and after 8 hours, everyone vaccinated is sterilized, both males and females and note “Patented” which means that everyone vaccinated, their body, is now owned by the vaccine maker of choice, like a GMO product, because once the vaccines are inside the body, past the Blood Brain Barrier and into the inner working of the body, they cannot be extracted, so the body becomes patented instead.
    Of interest is that everyone who is vaccinated, now sends out signals by 5G to a receiving station somewhere, a lot like a mobile phone does – this can be monitored by changing your mobile phone to “Developer Mode” in Bluetooth – what is interesting is what happens when the receiving station starts sending out signals by 5G to the vaccinated, bearing in mind they are 1) no longer human 2) don’t have any human rights, 3) their bodies are patented to the vaccine makers of choice 4) their brains are entirely hackable 5) the perfect human would be a human combined with a robot which for the sake of argument does not need to breathe to stay alive 6) I have another article where a living human head was chopped off and grafted onto another living body – although the functions and connections could not be made to make the new head control the body, that ceases to be a problem when the body itself is controlled by 5G independently, all that needs to be done then, is to hack the brain and that’s that, don’t you agree? 7) Musk is experimenting with brain hacking technology at the moment and has skull caps made and ready to go, which hack the human brain – they have succeeded so far with a monkey and a pig, which play computer games unaided – we are supposed to be descended from monkeys and pig hearts and valves are used to extend human life when the equivalent starts to pack in – so it is a short step from monkeys and pigs to humans, don’t you think?
    Now that babies, 6 months old and up are being vaccinated, as above, they also will have their DNA changed within 6 hours and be permanently steralized within 8 hours, so no more kids and no more adults, this generation, from the vaccinated, probably means the end of much of the human race within this generation or the next one.
    Of concern to me is the vaccinated, who so far have not had adverse effects from the vaccines, however from reports from other countries the outlook currently is pretty grim with probably over 1 million killed and 10 million injured from these vaccines, so far, bearing in mind that we are told that 7.6 billion have been vaccinated out of a probable 7.9 billion world population – who as above, are no longer human, their bodies patented to the vaccine makers of choice.
    Of course, whoever owns your body, probably owns everything that you accumulated before being vaccinated, in a material way, but I can’t really say on that, as it is beyond my legal understanding of how these things work – but “You will own nothing and you will be happy” by 2030, if not sooner – begins to make more sense, don’t you think?
    But lets put the above into some sort of picture – why would the US Supreme Court, make the above Law in 2013, with world wide application, if they did not intend to use it at some point in time in the future.
    Also, another intersting thing happened in 2013 – Moderna patented Cov-19 with 4 or 6 patents and it has been established that Moderna created Cov-19 with a 3 billion to 1 chance that they did not – much higher levels of finding the police finding the guilty for past DNA crimes, which are only 3000 to one or thereabouts, if I recall correctly.
    It seems to me that these 2 events which took place in 2013, were just too convenient to pass off as luck.
    Where do we go from here – time cures all things and solves all puzzles, I just hope we like the results of whatever that will be – probably not!!
    I remain not vaccinated and I suggest that those of you not vaccinated, stay that way too.

    Reply

Leave a comment

Save my name, email, and website in this browser for the next time I comment.
Share via