The need for a third dose and 3 other unknowns that arose during the Covid vaccination – BBC News Africa

  • Jose Carlos Cueto
  • BBC News Mundo

Photo credit, Getty Images

Seven months have passed since Britain’s Margaret Keenan received the world’s first covid-19 vaccine and began to fight the pathogen.

Countries such as the United Kingdom, Israel and the United States appear to be close to the vaccination levels needed to assess a return to normal.

These seven months of mass vaccinations were also marked by uneven rhythms between rich and poor countries and the threat of new options emerging.

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