A lab technician wearing a protective face mask uses a multichannel pipette dropper during the antigen quantification process of the coronavirus vaccine research at the Valneva SA laboratories in Vienna, Austria, on Thursday, Aug. 6, 2020. Photographer: Akos Stiller / Bloomberg The UN agency also recommended the use of a second booster dose for some individuals at high risk of severe disease.
However, that does not constitute a general recommendation of vaccinating all adults, and is aimed at avoiding severe disease and death in populations at the highest risk, it said.
The recommendations come after the WHO's Strategic Advisory Group of Experts (SAGE) on immunisation held a meeting last week.
(Reporting by Manas Mishra in Bengaluru; Editing by Devika Syamnath)