The World Health Organisation said that the Omicron variant of Covid is far more transmittable than the Delta variant of the virus and also reduces the efficacy of the vaccines in the patient’s body.
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Pfizer Says Its Booster Provides Protection Against Omicron Variant
Pfizer Says Its
Booster Provides , Protection Against Omicron Variant.
Pfizer Says Its
Booster Provides , Protection..
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