Pfizer booster vaccine: Professor shares the three main side effects – safety update


The NHS is urging those eligible to get their booster Covid vaccine to stem the rising tide of coronavirus hospitalisations this winter. Everyone aged 50 and over falls into the most eligible category and this cohort are being offered either the Pfizer or Moderna jab. The Pfizer booster dose is exactly the same as the first and second dose of the Pfizer vaccine.

“The Moderna is half the dose because it is much stronger,” explained professor Tim Spector, lead scientist on the ZOE COVID Study app, in his latest video.

Professor Spector issued a safety update on the booster vaccines and the possible side effects to expect.

“More than 240,000 of people have submitted data on the jabs and told us how you felt afterwards and whether you caught coronavirus afterwards,” he explained.

Prof Spector continued: “In terms if the side effects, really nothing to worry about it.”

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“That compares with 10 percent on first jab and 16 percent on second jab. Certainly not getting worse.”

According to prof Spector, if you’re previously infected, you’re more likely to have a worse systemic response, which seems to be the same for the second doses.

The case to get vaccinated with a booster shot seems fairly conclusive.

Data indicates that recipients get a 95 percent protection after three doses of a Covid vaccine.

You can also:

  • Go to a walk-in vaccination site to get vaccinated without needing an appointment
  • Wait to be contacted by a local NHS service such as a GP surgery and book an appointment with them.
  • People who work for an NHS trust or a care home will usually get their booster dose through their employer.

Most people will be offered a booster dose of the Pfizer/BioNTech vaccine or Moderna vaccine.

Some people may be offered a booster dose of the Oxford/AstraZeneca vaccine if they cannot have the Pfizer/BioNTech or Moderna vaccine.



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