Host genetics shape immune responses and influence severity of infectious diseases. The HLA-B -21 M/T dimorphism tunes the functionality of natural killer (NK) cells expressing the inhibitory receptor NKG2A. NKG2A NK cells have been reported to recognize SARS-CoV-2-infected cells, but it remains unclear whether the HLA-B -21 M/T dimorphism associates with COVID-19 severity.
View Article and Find Full Text PDFBackground: It is thought that patients with inborn errors of immunity (IEI) are more susceptible to severe coronavirus disease 2019 (COVID-19) than the general population, but a quantification of this potential risk is largely missing.
Objective: We assessed the impact of COVID-19 on patients with IEI.
Methods: A nationwide cohort study was performed to estimate the relative risk (RR) for hospitalization, intensive care, and death within 30 days after a positive severe acute respiratory syndrome coronavirus 2 test result in an IEI population (n = 2392) compared to the general population (n = 8,270,705) using data from Swedish national registries.
Background: Data on the outcomes of COVID-19 in people living with HIV (PLHIV), specifically in relation to vaccination status, are lacking during the Omicron era.
Methods: This nationwide registry-based study included all resident in Sweden ≥18 years with a positive SARS-CoV-2 PCR test during January 2021-February 2023. We estimated adjusted odds ratios (adjOR) for COVID-19 hospitalisation and severe COVID-19 (ICU admission and 90-day mortality), categorised by SARS-CoV-2 vaccination status (0-1, 2, and ≥3 doses), and HIV-status.