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The First Shot Protects 80 Percent at Pfizer/Biontech and Moderna

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When someone gets a single shot of the corona vaccines from Pfizer / BioNTech or Moderna, the chance of infection with the coronavirus drops by 80 percent.


The second vaccination increases the protection to 90 percent. This is the conclusion of the American version of the National Institute for Public Health and the Environment (RIVM). The Centers for Disease Control and Prevention (CDC) studied the vaccines’ effect on 3950 subjects.

Ernst Kuipers, chairman of the National Network Acute Care, advocates further postponing the second injection in the Netherlands. The first shot is enough to decrease the number of hospital admissions.

Later, when people get their second shot, the released doses can be used to give others their first shot to build up protection against the coronavirus. Most vaccines need to be administered twice, with a few weeks between the first and second injection.

Pfizer / BioNTech and Moderna vaccines work in the same new way. They use the genetic code of the coronavirus protrusions, the so-called messenger RNA (mRNA). That code is contained in small fat globules, which are injected.

Some cells start to produce the protein of the protrusions themselves by the instructions of the genetic code. The immune system produces antibodies and later recognizes the intruder, is the thought.

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