SARS-CoV-2 seroprevalence, and IgG concentration and pseudovirus neutralising antibody titres after infection, compared by HIV status: a matched case-control observational study

Studies (n=2017) found although there were fewer cases of COVID-19 in those with HIV vs those without, the odds of severe COVID-19 was 5.52 times. IgG concentrations in those with past infection were lower in those with HIV, suggesting diminished serological response to infection