Overcoming barriers to HCV screening in Latin America: From evidence to action.

Chronic hepatitis C virus (HCV) infection remains a major global public health challenge. Despite the availability of highly effective therapies capable of curing the vast majority of patients, millions remain undiagnosed and often present for medical care at advanced stages of disease. This delay not only increases mortality and the burden of cirrhosis and hepatocellular carcinoma but also affects quality of life, productivity, and healthcare system costs. In this context, screening emerges as a cornerstone for achieving HCV elimination. It enables the identification of hidden cases, early treatment initiation, prevention of complications, and reduction of community transmission. At the population level, prioritizing individuals with the highest likelihood of transmitting infection produces a multiplier effect, while both universal and risk-based strategies have consistently proven cost-effective, generating medium-term savings. In Latin America, the epidemiological landscape is heterogeneous. While overall prevalence in the general population is relatively low, high endemicity persists in vulnerable groups such as people who inject drugs, incarcerated individuals, and patients undergoing hemodialysis. Major barriers include fragmented health systems, lack of clinical registries, stigma, and restricted access to diagnosis and therapy. Yet, the region also holds clear opportunities: simplified diagnostic pathways using rapid testing and reflex algorithms, micro-elimination in key populations, pooled procurement of antivirals through the Pan American Health Organization, and the integration of digital health and telemedicine. In conclusion, HCV screening constitutes both a public health necessity and an ethical obligation. Its organized and sustainable implementation is essential to translate therapeutic efficacy into collective benefit and to accelerate progress toward the elimination of hepatitis C.