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Boston Cardinal Sean O'Malley, right, walks with Eduardo Martínez Díaz, president of BioCubaFarma, as they walk Sept. 9 through Cuba's Genetic Engineering and Biotechnology Center where the island's locally developed COVID-19 vaccines are made in Havana, Cuba. (AP/Ramon Espinosa)
Boston Cardinal Sean O'Malley, right, walks with Eduardo Martínez Díaz, president of BioCubaFarma, as they walk Sept. 9 through Cuba's Genetic Engineering and Biotechnology Center. (AP/Ramon Espinosa)