Journal of Yeungnam Medical Science

Review article

Infectious Disease
Vaccine trends: a narrative review: Jacob Sangwoon Bae; J Yeungnam Med Sci. 2025;42:71. Published online November 5, 2025; DOI: https://doi.org/10.12701/jyms.2025.42.71

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Abstract PDF: Vaccination has played a central role in the historical and modern fight against infectious diseases. This review explores the evolution of infectious disease perception from ancient humoral theories to the modern “One Health” framework, reflecting the integration of environmental, animal, and human health. Vaccines have not only reduced morbidity and mortality but have also provided profound economic and developmental benefits across societies. Climate change, antimicrobial resistance, and the rapid emergence of new infectious threats have prompted innovations in vaccine technologies, including messenger RNA, DNA, viral vector, and nanoparticle-based platforms. These advances support personalized vaccine strategies, such as vaccinomics, and extend their application to noncommunicable diseases, including cancer and Alzheimer disease. Despite their success, vaccines face challenges including global access disparities, waning immunity, pathogen evolution, and vaccine hesitancy. Nonetheless, vaccination remains a cornerstone of global health security, with strong returns on investment and crucial roles in socioeconomic stabilization during pandemics. Future vaccine strategies must integrate technological innovation with equitable access and public trust, for instance, through global initiatives like the Coalition for Epidemic Preparedness Innovations and the World Health Organization COVID-19 Vaccines Global Access, and the establishment of regional manufacturing hubs to effectively respond to unpredictable threats like “Disease X.”

Original Article

Gastroenterology and Hepatology
Clinical Characteristics of Adult Patients with Acute Hepatitis A.: Jong Ryul Eun, Heon Ju Lee, Tae Nyeun Kim, Byung Ik Jang, Hee Jung Moon; Yeungnam Univ J Med. 2007;24(2):170-178. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2.170

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BACKGROUND
The incidence of acute hepatitis A in adults has recently been increasing. This study was conducted to investigate the epidemiology and clinical characteristics of acute hepatitis A in Daegu province over the past 10 years. MATERIALS AND METHODS: We reviewed the medical records of 55 patients (male/female: 34/21), who were diagnosed with acute hepatitis A by confirmation of the IgM anti-HAV between January 1998 and June 2007. RESULTS: The mean age was 29.7+/-10.3 years (range; 17-65 years). The incidence was most common between March and June (56.1%), in the third and fourth decades of life (78.2%) and 90.9% (50/55) of the patients were diagnosed from 2003 to present. The common symptoms included anorexia, nausea or vomiting (69.1%), fever and chills (49.1%), myalgia (47.3%), weight loss (47.3%), fatigue (40.0%), abdominal pain (36.4%), diarrhea (9.1%) and pruritus (5.5%). The mean duration of hospital stay was 8.6+/-3.4 days (range; 3-20 days). The route of transmission was identified in only 11 patients (20.0%); 7 patients (12.7%) traveled (abroad or domestic), 2 patients (3.6%) ingested raw food and 2 patients (3.6%) had friends with acute hepatitis A. Fifty four patients recovered without complication; one patient developed fulminant hepatitis and recovered after a liver transplantation. CONCLUSION: The incidence of acute hepatitis A in adults is increasing. Because of the cost of treatment and potential for serious disease, persons, under 40 are recommened to have hepatitis A vaccination and confirmation of IgG anti-HAV.

Citations

Citations to this article as recorded by

Pattern of Hepatitis A Incidence According to Area Characteristics Using National Health Insurance Data
Joo Youn Seo, Jae Hee Seo, Myoung Hee Kim, Moran Ki, Hee Suk Park, Bo Youl Choi
Journal of Preventive Medicine & Public Health.2012; 45(3): 164. CrossRef

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