CURRENT CHALLENGES OF HEPATITIS A IN UKRAINE DURING WARTIME: A LITERATURE REVIEW

Abstract

Goal: to analyze the situation of the incidence of hepatitis A in Ukraine during wartime. Materials and methods. The literature review was carried out using search engines on the platforms PubMed and Google Scholar, abstract database of scientific literature Scopus. Articles in both English and Ukrainian languages were sought. Employing bibliographic and analytical methods, approximately 50 literary sources were scrutinized. These included review articles, randomized and cohort studies, as well as international recommendations for antiviral drug prescriptions, directives, Ukrainian and European protocols for managing hepatic infection. Results. Fulminant hepatitis is a rare occurrence, accounting for less than 1% of cases, although cholestatic forms and recurrent hepatitis have also been documented. Recurrent hepatitis typically manifests in about 3–20% of patients, usually occurring 3–12 weeks following the initial episode, with symptoms generally less severe than the initial presentation. Unlike other hepatitis viruses, HAV does not establish chronic infections. While extrahepatic manifestations of acute hepatitis A are uncommon, they may include neurological symptoms such as Guillain-Barré syndrome, rash, pancreatitis, arthritis, myocarditis, acute kidney injury, and hematologic disorders such as hemolysis and cryoglobulinemia. Numerous studies have indicated that disease severity and mortality associated with HAV infection are heightened among individuals with chronic liver disease, encompassing hepatitis B or C virus coinfection, alcoholic cirrhosis, and fatty liver disease. Chronic liver disease is prevalent in HIV patients due to factors such as coinfection with HBV or HCV, hepatotoxicity from antiviral medications, or alcoholic liver disease. This population may also face an elevated risk of acute or chronic liver failure. HAV infections represent the predominant cause of viral hepatitis globally. The epidemiology of HAV has undergone significant changes due to globalization and improved sanitation. Person-to-person transmission, particularly among high-risk populations such as men who have sex with men (MSM), individuals who use psychoactive substances, and those experiencing homelessness, predominates in high-income countries. Conclusion. However, outbreaks still occur despite the availability of safe, effective vaccines and long-term HGA vaccination recommendations for these individuals. Efforts should be made to develop resources aimed at raising awareness of HAV among high-risk populations and promoting vaccination. Additionally, the development of a specific antiviral treatment for HAV could be very helpful in preventing outbreaks of the virus.