Profile of Discordant Couples for Human Immunodeficiency Virus Infection Followed in Kinshasa: Case of Monkole Medical Center

Background: Programs targeting serodiscordant couples in Africa are not a priority in efforts to prevent Human Immunodeficiency Virus (HIV) infection, although a large proportion of these occur in stable relationships, of which serodiscordance accounts for about two-thirds with a high risk of seroconversion of the seronegative partner. Objective: The objective of this study was to describe the profile of HIV serodiscordant couples followed in Kinshasa, DRC. Methods: Descriptive cross-sectional study to describe the profile of different heterosexual HIV serodiscordant couples followed at the Monkole Medical Center in Kinshasa, DRC, from November 2021 to June 2022. The data were collected from the information sheets elaborated by the research team as well as from the information provided by the computerized files of the patients managed at the Infectious Diseases Unit of the Monkole Medical Center after the signature of the informed consent. An average of 8 cc of blood was taken from a peripheral vein in the patient’s forearm, and was stored in EDTA tubes at −20˚C, of which at least 6 mL were used for biochemical analyses, 2 spots of 200 μL for each partner were stored on filter paper at −20˚C and were used for DNA extraction. Nested PCR confirmed the serological diagnosis. Results: Out of a total of 482 heterosexual couples followed for HIV at the Monkole Medical Center, 28 (5.8%) were HIV serodiscordant, of which 14 (2.9%) couples agreed to participate in the present study. The mean age was 43.39 ± 10 years with extremes ranging from 24 to 62 years. The patients were mainly from the informal sector (53.6%) and weighed between 61 and 71 kg (46.4%). Sexual intercourse continued in all couples, without condom use (85.7%) for desire of procreation (82.1%); although the great majority of HIV-negative partners (85.7%) were not under ARV prophylaxis. Leukopenia was found in 42.9% of HIV-negative partners compared to 21% of HIV-positive partners; all partners had a predominantly lymphocytic white blood cell count. 21.4% of HIV-negative partners had high HDL, 14.3% of HIV-positive partners had low HDL, and 14.3% of HIV-negative partners had high LDL. Chi-square and Pearson correlation tests showed no relationship between the biochemical parameters performed and the couples’ serodiscordance for HIV. Conclusion: The frequency of HIV discordant couples in Kinshasa is significant. Serodiscordance is encountered in young intellectual and entrepreneurial couples with a desire to procreate. It is desirable to carry out further analyses for better management of these couples.