Covid: when will the next generation of vaccines that protect us against the new variants of the coronavirus arrive?

  • Andre Biernath
  • BBC News Brazil

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In practice, the process of updating doses is more complicated than first thought.

After a year and a half since the first doses were given, the covid-19 vaccines must be updated to combat omicron subvariants, such as BA.1. BA. 4 and BA. 5.

They are expected to be available between September and October 2022, as planned by drug and pharmaceutical regulatory agencies such as Moderna and Pfizer, both producers of vaccines already approved and used on a large scale in much of the world.

“It is highly recommended and necessary that we have new vaccines,” considers the pediatrician and infectologist Renato Kfouri, director of the Brazilian Society of Immunizations.

In practice, the process of updating doses is more complicated than was originally thought.