NIPAH VIRUS: AN EMERGING ZOONOTIC THREAT AND GLOBAL PUBLIC HEALTH CHALLENGE

Nipah virus (NiV) is a highly pathogenic virus that has emerged as a significant public health threat due to its high case fatality rates (up to 75%) and potential for causing widespread outbreaks. First identified in 1998-1999 during an outbreak among pig farmers in Malaysia and Singapore, NiV has since been associated with several outbreaks in South and Southeast Asia. This zoonotic virus, which has the potential to cause severe and often fatal disease in humans, has triggered multiple outbreaks across South and Southeast Asia, notably in Bangladesh and India. Its pathogenesis involves a complex interplay between the virus and the host's immune system, leading to severe clinical manifestations, including encephalitis and respiratory disease. Nipah virus is classified as a Biosafety Level 4 (BSL-4) pathogen due to its high fatality rate, potential for human-to-human transmission, and lack of effective treatments or vaccines. This article provides a comprehensive analysis of Nipah virus as an emerging virus, exploring its origins, transmission dynamics, clinical impact, public health implications, ongoing research, future directions in the management of Nipah virus, and the challenges it poses to global health.