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LONDON, England, January 4, 2021 (LifeSiteNews) — Official guidance issued by the U.K. government has outlined that people receiving COVID-19 vaccines can mix the vaccines they receive. The U.S. Centers for Disease Control and Prevention (CDC), on the other hand, had advised against this practice, stating that COVID vaccines are “not interchangeable.”

The U.K. governments document, published in November and quietly updated on New Year’s Eve, now supports the mixing of COVID vaccines, suggesting that patients could receive Pfizer’s vaccine and afterwards get the newly approved Oxford/AstraZeneca vaccine. Both vaccines require two doses in the administration process.

The U.K. guidance notes, “For individuals who started the schedule and who attend for vaccination at a site where the same vaccine is not available, or if the first product received is unknown, it is reasonable to offer one dose of the locally available product to complete the schedule.”

“This option is preferred if the individual is likely to be at immediate high risk or is considered unlikely to attend again,” the document adds. “In these circumstances, as both the vaccines are based on the spike protein, it is likely the second dose will help to boost the response to the first dose. For this reason, until additional information becomes available, further doses would not then be required.”

Only a few lines before, the document had encouraged that both doses be of the same vaccine, admitting that there is “no evidence on the interchangeability of the COVID-19 vaccines although studies are underway.” Notwithstanding this lack of evidence, the guidance defends its decision to mix vaccines by saying it is “reasonable” to do so.

This goes against the CDC’s advice, which states that “mRNA COVID-19 vaccines are not interchangeable with each other or with other COVID-19 vaccine products.” Neither the “safety” nor the “efficacy” of such mixing of vaccines has been examined, the CDC notes, and thus both doses “should be completed with the same product.”

The CDC even advises that COVID-19 vaccines are not to be administered around any other vaccines, calling for a “minimum interval of 14 days before or after administration with any other vaccine.”

Reporting on the news, The New York Times called the idea a “scientific gamble,” reminding readers of the very different composition of the two vaccines, with Pfizer’s being an mRNA vaccine, while the Oxford vaccine is DNA based. The Times also added that by mixing the various vaccines, it could be “more difficult to collect clear data on vaccine safety.”

Speaking to the Times, virologist John Moore of Cornell University said: “There are no data on this idea whatsoever,” adding that British officials “seem to have abandoned science completely now and are just trying to guess their way out of a mess.”

Head of Immunisations at Public Health England, Dr. Mary Ramsay, also warned against mixing vaccines, yet echoed the government in supporting the move if the initial vaccine could not be given for the second dose.

Moore’s words and the Times’ article sparked a reaction from the editor of the renowned British Medical Journal, Fiona Godlee, who styled the news of mixing vaccines as “seriously misleading,” despite the official document clearly stating that such an event could occur.

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Concerns over the health and safety of the human test subjects in Pfizer's European COVID vaccine study have caused two eminent doctors to launch a petition calling for an immediate halt to those studies.

On December 1, 2020, Dr. Michael Yeadon, an ex chief of research at Pfizer and Dr. Wolfgang Wodarg, a lung specialist and former department head of public health lodged an appeal to the EMA, the European Medicine Agency responsible for approving drugs across the EU, asking them to suspend the ongoing Pfizer/BioNtech COVID vaccine study on BNT162b (EudraCT number 2020-002641-42).

LifeSite is joining Drs. Yeadon and Wodarg in their call for an immediate suspension of this study and we are encouraging people to co-sign their petition to the EMA which is to be found in the petition section on this page.

Please SIGN and SHARE this important petition, and then please contact the EMA at the address listed below, in the 'For More Information' section.

In their application to the EMA, Drs. Yeadon and Wodarg give the following reasons why the Pfizer study could pose dangers to the health and safety of the study participants:

  • First, the doctors say that the study design must be improved as the highly inaccurate PCR test is currently being used to detect the presence of COVID in the study participants. This means that the efficacy of the vaccine is in doubt. The doctors recommend changing from the PCR test to Sanger sequencing.
  • Second, and more important, the doctors advocate animal testing of the vaccine to exclude the possibility of the risks to the life and health of human participants from known side-effects of other similar studies on corona viruses.

These side-effects can include: an exaggerated immune response when the subject comes into contact with the "real world" virus; possible infertility of an "indefinite duration" for women; severe allergic responses to polyethylene glycol which is contained in the mRNA vaccine being tested by Pfizer; and, other latent, serious side effects which, because of the short duration of the study, may only become known well after the conclusion of the study.

Because of these unacceptable risks to the life and health of the Pfizer/BioNtech COVID vaccine study participants, we are joining with Drs. Yeadon and Wodarg as co-signers of their petition to the European Medicine Agency, asking for an immediate halt to these studies.

Thank you for SIGNING and SHARING, today!

And, after you have signed this petition, please send the sample email in the section below to the official European Medicine Agency email: [email protected]


Actual Petition Text (pdf):

Sample Email:

Subject: Please act on the petition of Dr. Wodarg and Dr. Yeadon and stay the Phase III clinical trial(s) of BNT162b

Dear Sir or Madam,

I am hereby co-signing the petition of Dr. Wodarg and Dr. Yeadon to support their urgent request to stay the Phase III clinical trial(s) of BNT162b (EudraCT Number 2020-002641-42) and other clinical trials. The full text of the petition of Dr. Wodarg and Dr. Yeadon can be found here:

I hereby respectfully request that EMA act on the petition of Dr. Wodarg and Dr. Yeadon immediately.

Regards, [Your name]

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Yet these were not the only recent surprise vaccine news to emerge from the U.K., as just a few days previously the U.K. Chief Medical Officers (CMOs) managed to change the vaccination roll-out timeline, lengthening the gap between the two jabs from around 21 days to 12 weeks.

The letter from the CMOs claimed that the initial jab “provides substantial protection within 2-3 weeks of vaccination,” and while the second jab would “likely … be very important for duration of protection,” it was unlikely to add any substantial protection to that offered by the first one.

Pfizer itself has tested its vaccine doses 21 days apart, but evidence has not been presented as to how efficacious it would be with a gap of 12 weeks between doses. However, the CMOs mentioned that the Joint Committee on Vaccination and Immunisation was “confident” that 12 weeks would be a “reasonable dosing interval.”

The Chair of the British Medical Association’s (BMA) General Practitioners Committee, Dr. Richard Vautrey, called the change “grossly and patently unfair.” In a statement made on the BMA website, Vautrey declared, “Local leaders are telling us that is unprofessional and impractical to amend the appointments for thousands of frail elderly patients.”

While the U.K. medical officers are proceeding at rapid pace in drawing up, and changing plans for the COVID vaccine roll-out, former vice president of Pfizer, Dr. Michael Yeadon, has flatly rejected the need for vaccines.

“There is absolutely no need for vaccines to extinguish the pandemic,” he argued. “I’ve never heard such nonsense talked about vaccines. You do not vaccinate people who aren’t at risk from a disease. You also don’t set about planning to vaccinate millions of fit and healthy people with a vaccine that hasn’t been extensively tested on human subjects.”

LifeSiteNews has produced an extensive COVID-19 vaccines resources page. View it here.