Pfizer: Why is the third dose important?
2:20
(CNN) -
A third dose of the Pfizer / BioNTech covid-19 vaccine can "strongly" boost protection against the delta variant, beyond the protection provided by the two standard doses.
This is suggested by new data released by Pfizer on Wednesday.
The data was released online and is expected to be discussed in an earnings call from the company Wednesday morning.
This information suggests that the levels of antibodies against the delta variant in people aged 18 to 55 years who receive a third dose of vaccine are more than five times higher than after a second dose.
How to defend the youngsters of the delta variant?
4:17
Among people 65 to 85 years old, data from Pfizer suggests that levels of antibodies to the delta variant after receiving a third dose of vaccine are more than 11 times higher than after a second dose.
Dr. Huerta explains if it is possible to combine different doses of vaccines against covid-19
There is an "estimated potential for up to a 100-fold increase in delta variant neutralization after dose three, compared to the previous dose," the researchers wrote in the Pfizer data slides.
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Delta variant sends more young people to hospital in the US 0:36
The data also shows that antibody levels are much higher after a third dose than a second dose against the original variant of the coronavirus and the beta variant, first identified in South Africa.
Coroavirus vaccine
