Home / World / The FDA authorized Pfizer’s Covid-19 vaccine for children ages 12 to 15 by early next week, officials said.

The FDA authorized Pfizer’s Covid-19 vaccine for children ages 12 to 15 by early next week, officials said.



Since the outbreak of COVID-19, experts have said how important it is to have herd immunity. But now some people say that full herd immunity may not be necessary for life to look more normal.

Herd immunity, or what some experts call “population” or “community” immunity, is when the majority of the population is immune to a specific disease, whether by natural infection or vaccination. When the population reaches this point, the virus has nowhere to go and the disease has faded. And then even people without personal immunity are protected.

As with any disease, the number of people who need to be immunized to provide community protection depends on infection.For Covid-1

9, experts think the magic number could be anywhere between 70 and 90% of the population who are immune to it. virus The world is already near that level.

“Considering where we are today, when we look around the United States and when we look at the world, it doesn’t seem like it’s going to happen in the foreseeable future,” said Covid Director Lauren Anselmeyers. -19 Modeling Consortium at the University of Texas at Austin

It was a good goal, Meyers said. But she chose a number of factors in this particular outbreak, suggesting that the odds were not in favor:

  • Immunizing large numbers of people is almost impossible.
  • This virus spreads too quickly.
  • The more contagious strains threaten to make the vaccine less effective.
  • There are both countries and pockets of the United States where few people are fully vaccinated.
  • There are problems with access to vaccines and equality.
  • The child has not been vaccinated.
  • About a quarter of the population is reluctant or reluctant to get vaccinated.

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Life may feel more normal before it reaches herd immunity.

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