The "bivalent" jab, made by Pfizer/BioNTech, is directed at the highly infectious BA.4 and BA.5 types of the variant.
The European Medicines Agency has approved jabs targeting both the original virus and the BA.1 subvariant of Omicron ahead of a feared Covid surge in the latter part of this year.
Moderna says Pfizer and BioNTech’s vaccine Comirnaty infringes on patents Moderna filed several years ago protecting the technology behind its preventive shot, Spikevax.
The two partners, makers of the Western world's most widely used Covid-19 shot, are currently discussing with regulators enhanced versions of their established shot to better protect against the Omicron variant and its sublineages.
The shots will become available next week, expanding the nation’s vaccination campaign to children as young as 6 months.
The vaccine can now be used as a booster following the two-dose Vaxzevria schedule or by those who have been vaccinated by an mRNA vaccine, such as the ones by Pfizer and BioNTech or Moderna.
A study on 1.3 million people aged 60 and older looked at data from the Israeli Ministry of Health database between January 10 and March 2, when the Omicron variant was predominant.
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We speak with health experts to make sense of the latest data coming out of South Africa, and how far it will apply elsewhere.
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