The World Health Organization's group of advisory experts is considering evidence this week on Covid-19 heterologous vaccines, or mix and match vaccines, and will report their findings on Thursday, a spokesperson said on Tuesday.
The independent experts will also look at "the Johnson & Johnson series - whether you should have one dose or two doses", WHO spokesperson Margaret Harris told a U.N. briefing in Geneva.
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(Published 07 December 2021, 11:22 IST)