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What occurred to Janssen’s vaccine in order that he now wants a booster dose: two million Spaniards must be vaccinated once more

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Yesterday, the Ministry of Well being and the autonomous communities agreed begin placing a memento dose (with Pfizer or Moderna) to the 2 million individuals who throughout the vaccination marketing campaign had been vaccinated with Janssen serum. This second dose will start to be placed on November 15.

What, according to various media, the choice has been “adopted after verifying the decrease effectiveness of the single-dose serum”, it’s price asking:what occurred to this vaccine And, above all, why this rush in relation to placing the booster dose?

What occurred to Janssen?

The reply is straightforward: nothing has occurred. From the primary second we knew that the Janssen vaccine was a single dose solely on paper. The injectable used the identical expertise because the AstraZeneca vaccine and had numbers similar to it. What occurred is that, with an incredible “enterprise sense”, Janssen noticed that the info from the primary injection allowed “promoting” his product as a single dose to regulators and governments.

It was particularly fascinating in a context of vaccine shortages and the necessity to obtain excessive vaccination numbers. However in essence it’s one thing similar to what the UK did delaying the second shot of AstraZeneca as a lot as doable: all of us knew that the second dose was going to reach ultimately. Actually, Janssen was operating a medical trial with two injections in case the outcomes of the primary didn’t permit approval as a single dose.

So why not get the booster repair with Janssen? If we keep in mind, we’ll keep in mind that the controversy about whether or not it was higher to make use of the identical vaccine or one other was already had with AstraZeneca in summer time. Now we’ve extra data on the protection of blending vaccines, it’s true; However deep down, the reason of why utilizing Pfizer or Moderna could be very easy: we do not have Janssen for everybody as a result of many contracts had been canceled and we’ve loads of RNA vaccines.

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