Pfizer says it is developing a Covid booster shot to target the highly transmissible delta variant July 10, 2021 by txadmin Share to the world...https://www.cnbc.com/2021/07/08/pfizer-says-it-is-developing-a-covid-booster-shot-to-target-the-highly-transmissible-delta-variant.html Share to the world... Tags: Articles, Delta Variant, Mass Vaccinations, Medical Tyranny, mRNA Vaccine, Plandemic, Viral Variants