DR SAIRA REHMAN; DR FARAH QAMAR NAZ; DR IBTISAM QAZI. KNOWLEDGE AND ATTITUDE ABOUT COVID-19 VACCINES AND THEIR BOOSTERS AMONG HEALTHCARE WORKERS (HCWS) AT SECONDARY AND TERTIARY CARE HOSPITALS IN KARACHI, PAKISTAN. Insights – Journal of Health and Rehabilitation, [S. l.], v. 4, n. 3, p. 1–10, 2026. DOI: 10.71000/557m7869. Disponível em: https://insightsjhr.com/index.php/home/article/view/1733.. Acesso em: 19 aug. 2026.