A nurse administers a dose of the Moderna Covid-19 vaccine at a clinic for Catholic school education workers including elementary school teachers and staff at a vaccination site at Loyola Marymount University (LMU) on March 8, 2021 in Los Angeles, California. (Photo by Patrick T. FALLON / AFP) (Photo by PATRICK T. FALLON/AFP via Getty Images)

Patrick T. Fallon
A nurse administers a dose of the Moderna Covid-19 vaccine at a clinic for Catholic school education workers including elementary school teachers and staff at a vaccination site at Loyola Marymount University (LMU) on March 8, 2021 in Los Angeles, Calif.

NEWS ANALYSIS: The FDA’s emergency approval of the Johnson & Johnson COVID-19 vaccine prompts disputes between Church authorities, scholars and activists, stirring controversy and confusion.