COVID-19(5) SARS-CoV-2(2) Vaccines.(1) antibody(1) Eye casualty(1) leadership.(1) specificity.(1) Acute kidney injury(1) immunomodulators(1) Predictive value(1) Service improvement.(1) antivirals(1) pandemic(1) Eye emergency department(1) Kidney replacement therapy.(1) crisis management(1) sensitivity(1) Critical illness(1)