http://www.newsweek.com/fact-check-india-ban-pfizer-covid-vaccine-biontech-coronavirus-1570158 > Governments around the world have launched mass vaccination campaigns in recent months to protect their citizens from COVID-19. > Multiple pharmaceutical companies have spearheaded vaccine development, including Pfizer-BioNTech, Moderna and Oxford/AstraZeneca, with each claiming strong efficacy following clinical trials.