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(Reuters) – U.S. public health officials have said that a second COVID-19 vaccine could be given up to six weeks apart from the first in situations where it was not possible to get a booster dose immediately.
In most cases, the recommended dosage interval of three weeks for Pfizer Inc’s vaccine and four weeks for Moderna Inc’s vaccine should be followed, the US Centers for Disease Control and Prevention (CDC) said on Thursday. United in their directives.
However, “sometimes the situation is highlighted where it is very difficult to be exactly on time,” US infectious disease expert Dr Anthony Fauci told CNN on Friday.
“I don’t see a big problem with this (six week recommendation) if the situation on the ground means that the stress is such that you can’t precisely do 28 or 21 days,” Fauci added.
Moderna said there was no data to give an informed perspective on the CDC’s recommendation, while Pfizer did not respond to Reuters’ request for comment.
Britain has started to space vaccine doses up to 12 weeks despite scant data, saying the move could help more people get initial protection.
(Reporting by Manas Mishra in Bengaluru, additional reporting by Susan Heavey in Washington; Editing by Anil D’Silva)
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