Tuesday, October 19, 2021

Four doses – how will the new version of COVID-19 work?

Pfizer has produced a second version of its COVID-19 vaccine which the company says can get kids vaccinated at a younger age than the first.

The COVID-19 vaccine was tested on children aged between four and 11 in the first one. It showed that four of the five doses worked on 90% of kids over a year of age. That compares to around 80% for the original COVID-19, which is approved for use with the current vaccine, Pediacare.

The original vaccine was approved in 2000, and has been available since 2005, making it one of the more successful vaccines ever developed. It is particularly used by children with weakened immune systems, such as those who’ve had cancer or intensive care.

But COVID-19 is only recommended for children who haven’t had vaccinations against whooping cough before, like those born between 1997 and 1999. The vaccine has also not been licensed for use in adults.

Co-developer Hillman told the BBC that, so far, studies of COVID-19 in children aged four to 11 suggested it provides a lot of protection, and for many doses.

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