Why do we need vaccine boosters and how do they work?

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What does the science say about boosters? Are they being tweaked for new variants? And how many are we likely to need? | EXPLAINER covid19 vaccines booster

but Dr Peter Marks at the Food and Drug Administration in the US, where both Pfizer and Moderna are made, has said that changing formulas only when it is really necessary means less “churn and burn” on manufacturing, and so fewer delays in getting boosters out.this time. Omicron has about twice as many mutations as the highly infectious Delta, including 34 in the crucial spike protein that the virus uses to hack into our cells.

To tweak the vaccine, scientists just need to swap out the original spike RNA for a mutated Omicron version in its nanoparticle casing. BioNTech, which makes Pfizer, says it can produce and ship an updated version of its vaccine within 100 days if Omicron requires it. But its CEO,that he expects to see a “material drop” in vaccine effectiveness against Omicron.

, even if you’ve already had two doses of the same vaccine, and stimulates a strong T cell response as well as antibodies. Sometimes switching vaccine platforms can come with a slight increase in mild side effects such as fever, Griffin says. “But that could be a sign it’s working really well at stimulating your immune system. And we’re not seeing any increased risk for the rarer, adverse events.”

 

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The Unboosted make me sick

You can give my booster to some poor kid in Africa

Vaccine boosters are normal. Influenza yearly. Hepatitis is 3 shots over 6-7 months. Tetanus is every 5 years. Nothing new here.

I was speaking to a self-proclaimed expert with a cherry blossom emoji in their profile name, and they told me all vaccines are a hoax that contain mind-controlling microchips, so it must be true. They spent a whole 10 minutes reading QAnon sites so they are clearly experts.

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