HIV(43) AIDS(23) Human immunodeficiency virus(15) COVID-19(14) herpes zoster(12) Varicella zoster virus.(12) hepatitis B(10) Patient(10) opportunistic infection(9) Infection(8) recruited(7) vaccination.(7) COVID-19 pandemic(7) conducted(7) Varicella zoster virus(7) tested(6) Antiretroviral therapy(6) with HIV(6) herpes simplex virus(6) Care(6) alphaherpesvirinae concomitant reactivation(6) VZV(6) Health(6) Hepatitis B virus(6) barriers(6) Tuberculosis(6) diaphragmatic paralysis(6) Prevalence(5) immunisation(5) SARS-CoV-2(5)