Ibrahim Mohamed Saeed SHNAWA. Immunity and Duration of Immunity. Immunity to SARS-COV-2 Virus Infections, [S. l.], p. 8–14, 2021. DOI: 10.9734/bpi/mono/978-93-91882-77-8/CH2. Disponível em: https://stm.bookpi.org/ISCVI/article/view/3360. Acesso em: 4 jun. 2026.