PMID- 37124041 OWN - NLM STAT- MEDLINE DCOM- 20230502 LR - 20230503 IS - 2235-2988 (Electronic) IS - 2235-2988 (Linking) VI - 13 DP - 2023 TI - Case report: An occult hepatitis B virus infection reactivation in an HIV/HCV coinfected patient during an immune reconstitution inflammatory syndrome. PG - 1143346 LID - 10.3389/fcimb.2023.1143346 [doi] LID - 1143346 AB - The natural history of occult hepatitis B virus infection (OBI) and the mechanism involved in HBV reactivation are only partially understood. As regards people living with HIV (PLWH), HBV reactivation is estimated to occur with an incidence ratio of 0.019 cases per 100 person-year. Here we report the case of OBI reactivation in a HIV/HCV co-infected patient followed for 25 years at our Infectious Diseases Unit, but, unfortunately, lost to follow-up about 19 months after Direct-acting antivirals (DAAs) treatment. At re-engagement, blood tests showed high replication of plasmatic HIV-RNA along with severe immunosuppression and normal levels of liver enzymes. However, 3 months after ART reintroduction, an immune reconstitution inflammatory syndrome (IRIS) was diagnosed with high detectable HBV-DNA load and transaminase elevation. Our case report shows how the balance between the virus and the host immune system is quite a dynamic process that might significantly impact the course of the disease. The aim of this case report is to bring to the attention of physicians that, although OBI reactivation is a rather rare occurrence, even amongst PLWH, its potential consequences compel to a high alertness on the matter. Therefore, especially in patients with an impaired immune system and on a tenofovir or lamivudine-sparing regimen, HBV serological and virological markers should always be strictly monitored, even in the absence of a hepatitis flare. CI - Copyright (c) 2023 Zaltron, Cambianica, Di Gregorio, Colangelo, Storti, Tiecco, Castelli and Quiros-Roldan. FAU - Zaltron, Serena AU - Zaltron S AD - Unit of Infectious and Tropical Diseases, ASST Spedali Civili di Brescia, Brescia, Italy. FAU - Cambianica, Anna AU - Cambianica A AD - Unit of Infectious and Tropical Diseases, Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia and University of Brescia, Brescia, Italy. FAU - Di Gregorio, Marco AU - Di Gregorio M AD - Unit of Infectious and Tropical Diseases, Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia and University of Brescia, Brescia, Italy. FAU - Colangelo, Cosimo AU - Colangelo C AD - Unit of Infectious and Tropical Diseases, Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia and University of Brescia, Brescia, Italy. FAU - Storti, Samuele AU - Storti S AD - Unit of Infectious and Tropical Diseases, Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia and University of Brescia, Brescia, Italy. FAU - Tiecco, Giorgio AU - Tiecco G AD - Unit of Infectious and Tropical Diseases, Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia and University of Brescia, Brescia, Italy. FAU - Castelli, Francesco AU - Castelli F AD - Unit of Infectious and Tropical Diseases, Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia and University of Brescia, Brescia, Italy. FAU - Quiros-Roldan, Eugenia AU - Quiros-Roldan E AD - Unit of Infectious and Tropical Diseases, Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia and University of Brescia, Brescia, Italy. LA - eng PT - Case Reports DEP - 20230414 PL - Switzerland TA - Front Cell Infect Microbiol JT - Frontiers in cellular and infection microbiology JID - 101585359 RN - 0 (Antiviral Agents) RN - 0 (DNA, Viral) SB - IM MH - Humans MH - Hepatitis B virus/physiology MH - *Hepatitis B, Chronic MH - Antiviral Agents/therapeutic use MH - *Coinfection/drug therapy MH - *Immune Reconstitution Inflammatory Syndrome/diagnosis/drug therapy MH - *HIV Infections/complications/drug therapy MH - Symptom Flare Up MH - *Hepatitis C, Chronic/drug therapy MH - *Hepatitis B/complications/diagnosis/drug therapy MH - DNA, Viral/genetics PMC - PMC10145166 OTO - NOTNLM OT - HBV/HIV coinfection OT - hepatitis B virus OT - immune reconstitution inflammatory syndrome (IRIS) OT - occult HBV OT - reactivation COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/05/01 06:42 MHDA- 2023/05/02 06:42 PMCR- 2023/01/01 CRDT- 2023/05/01 03:37 PHST- 2023/01/27 00:00 [received] PHST- 2023/03/24 00:00 [accepted] PHST- 2023/05/02 06:42 [medline] PHST- 2023/05/01 06:42 [pubmed] PHST- 2023/05/01 03:37 [entrez] PHST- 2023/01/01 00:00 [pmc-release] AID - 10.3389/fcimb.2023.1143346 [doi] PST - epublish SO - Front Cell Infect Microbiol. 2023 Apr 14;13:1143346. doi: 10.3389/fcimb.2023.1143346. eCollection 2023.