A High Percentage of People With Human Immunodeficiency Virus (HIV) on Antiretroviral Therapy Experience Detectable Low-Level Plasma HIV-1 RNA Following Coronavirus Disease 2019 (COVID-19)

To the Editor—We read with interest the recent article by Geretti et al in which, among adults <60 years of age with acute severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, human immunodeficiency virus (HIV) seropositivity was shown to be significantly associated with 28-day mortality, even when adjusted for age and other potentially important factors [1]. As the authors discuss in detail, these data contrast with a study recently published in Clinical Infectious Diseases by Sigel et al of people with HIV (PWH) who were hospitalized for acute SARS-CoV-2; in that study, there were no differences in adverse outcomes compared to a demographically similar HIV-seronegative group [2]. While a number of case series and retrospective studies have also shown no differences in coronavirus disease 2019 (COVID-19) mortality or severity in PWH [3–8], there is emerging evidence for exacerbations of lymphocyte dysfunction and aberrant immune activation in the setting of SARS-CoV-2/HIV coinfection [9]. Furthermore, COVID-19 often leads to increased markers of immune activation, inflammation, and immune dysregulation, regardless of concomitant chronic infections [10]. It is therefore plausible that, in addition to HIV modulating SARS-CoV-2 infection, COVID-19 may have a short- or longer-term impact on HIV disease following acute SARS-CoV-2 infection in PWH on effective antiretroviral therapy (ART). As a result, we sought to identify if SARS-CoV-2/HIV-1 coinfection may lead to an increase in the frequency of detectable, but low-level plasma HIV-1 RNA levels that would not necessarily be detected by clinical viral load assays. We tested large volumes of plasma for HIV-1 RNA using a highly sensitive single copy assay (SCA) from 12 PWH on ART using a replicate (9×) technology as previously described [11] with polymerase chain reaction–confirmed, convalescent SARS-CoV-2 infection a median of 37 days since onset of COVID-19 symptoms, and from 17 PWH on ART with plasma collection prior to COVID-19 (March 2018–October 2019). Table 1 summarizes participant demographics, ART use, and low-level residual HIV-1 RNA. Whereas 83.3% of PWH had detectable HIV-1 RNA by SCA, only 58.8% of PWH had detectable HIV-1 RNA prior to the COVID-19 pandemic despite similar input plasma volumes. The median HIV-1 RNA level was 1.59 copies/mL in PWH with recent COVID-19 compared with 0.38 in the pre–COVID-19 group. Four COVID-19–positive participants who all had detectable blips had subsequent testing a median of 75 days after onset of symptoms (interquartile range [IQR], 58–90 days); 3 had persistence of detectable HIV-1 plasma RNA (median, 1.95 [IQR, 0.1–14.53] copies/mL). Characteristics of People With Human Immunodeficiency Virus on Antiretroviral Therapy With Recent Coronavirus Disease 2019 (COVID-19) and Prior to COVID-19 Including Detectable Low-Level Plasma HIV-1 RNA Data are presented as No. (%) unless otherwise indicated. Abbreviations: ART, antiretroviral therapy; COVID-19, coronavirus disease 2019; HIV-1, human immunodeficiency virus type 1; INSTI, integrase strand transfer inhibitor; IQR, interquartile range; NA, not applicable; NNRTI, nonnucleoside reverse transcriptase inhibitor; PCR, polymerase chain reaction; PI, protease inhibitor; SCA, HIV-1 single copy assay (plasma RNA). aNo significant difference between recent COVID-19–positive and COVID-19–negative participants using Fisher exact test (P = .23). bNo significant difference between recent COVID-19–positive and COVID-19–negative participants using Mann-Whitney test (P = .36). Characteristics of People With Human Immunodeficiency Virus on Antiretroviral Therapy With Recent Coronavirus Disease 2019 (COVID-19) and Prior to COVID-19 Including Detectable Low-Level Plasma HIV-1 RNA Data are presented as No. (%) unless otherwise indicated. Abbreviations: ART, antiretroviral therapy; COVID-19, coronavirus disease 2019; HIV-1, human immunodeficiency virus type 1; INSTI, integrase strand transfer inhibitor; IQR, interquartile range; NA, not applicable; NNRTI, nonnucleoside reverse transcriptase inhibitor; PCR, polymerase chain reaction; PI, protease inhibitor; SCA, HIV-1 single copy assay (plasma RNA). aNo significant difference between recent COVID-19–positive and COVID-19–negative participants using Fisher exact test (P = .23). bNo significant difference between recent COVID-19–positive and COVID-19–negative participants using Mann-Whitney test (P = .36). Although sample sizes were modest and there were no significant differences between the COVID-19–positive and pre–COVID-19 groups, the above results suggest that lasting perturbations of immune function and systemic inflammation may impact the natural course of HIV infection, potentially months following SARS-CoV-2 infection. Whereas these low-level viremic episodes are unlikely to have direct clinical implications for patients, larger, prospective studies will be needed to fully understand the long-term impact of COVID-19 on HIV dynamics and viral immune responses. Financial support. This work was supported by the National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIAID/NIH) (grant number 3R01AI-141003-03S1 to T. J. H. and R01AI-158013 to M. Gandhi and M. Spinelli). Potential conflicts of interest. M. P. B. reports subsidized funding for HIV viral load testing from Hologic, outside the submitted work. S. B. reports that Hologic provided a Panther instrument used to perform the replicate Aptima testing for this study through a grant to Vitalant Research Institute. T. J. H. reports grants from NIAID/NIH, Bristol-Myers Squibb, and Gilead Biosciences, and personal fees from Merck & Co, outside the submitted work. All other authors report no potential conflicts of interest. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed.