A phased COVID-19 vaccine roll-out plan has been developed by NPHCDA due to availability of vaccines in-country and risk prioritization of individuals based on their level of exposure to COVID-19 and development of severe form of disease. COVID-19 vaccine introduction phases include: Phase 1: Health workers, Phase 2: Remaining health workers and persons 50 years and above, Phase 3: Persons with other underlying medical conditions and Phase 4: Other target population based on disease burden.