Johnson & Johnson says second dose boosts protection against COVID-19

Johnson & Johnson says a second dose of its COVID-19 vaccine might be even more effective.

Related Keywords

United States ,Kansas , ,ஒன்றுபட்டது மாநிலங்களில் ,கன்சாஸ் ,Christina Heinan ,Ohnson Amp Johnson ,Ohnson Amp Johnson Covid 19 Vaccine ,Dr Mark Steele ,Ovid 19 Pandemic ,Coronavirus ,Matt Flener ,News ,Missouri ,Kansas City ,Mbc ,