Medicine
Logistic regression
Comorbidity
Nested case-control study
Cohort
Internal medicine
Coronavirus disease 2019 (COVID-19)
Antiretroviral treatment
Cohort study
Vaccination
Univariate analysis
Human immunodeficiency virus (HIV)
Pediatrics
Multivariate analysis
Immunology
Viral load
Antiretroviral therapy
Disease
Infectious disease (medical specialty)
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