An illustration picture shows vials with Covid-19 Vaccine stickers attached and syringes with the logo of French-Austrian vaccine firm Valneva on Nov 17, 2020. (JUSTIN TALLIS / AFP)

The World Health Organization on Thursday recommended the use of French drugmaker Valneva's COVID-19 vaccine.

The recommendations come after the WHO's Strategic Advisory Group of Experts on immunization held a meeting last week

The UN agency also recommended the use of a second booster dose for some individuals at high risk of severe disease.

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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 on immunization held a meeting last week.