Foot and Mouth Disease (FMD): A Zoonotic Threat to Animal and Humans

Foot and Mouth Disease (FMD) is a highly contagious ailment caused by a single-stranded RNA virus, belonging to the picornaviridae family.The virus exhibits seven distinct serotypes with multiple subtypes, affecting a wide range of animals, including cattle, buffalo, sheep, goats, pigs, and various wild ruminants.While FMD is endemic in several countries, it remains a concern for global livestock due to its economic impact and rapid transmission.This comprehensive review explores the historical context, etiology, epidemiology, geographical distribution, and transmission modes of FMD.The disease's impact extends beyond animals, affecting humans through zoonotic transmission.The primary site of infection is the pharynx mucosa, with subsequent spread through the lymphatic system, causing vesicles in the mouth, feet, muzzle, and teat.Various factors contribute to the swift global dissemination of FMD, including its contagious nature, genetic adaptability, diverse transmission pathways, and host range.The study delves into the specific characteristics of different FMDV serotypes, highlighting the prevalence of serotype O and its significant role in outbreaks.It also discusses the pathogenesis of FMD, emphasizing the viral replication process and host interactions.The zoonotic potential of FMD is acknowledged, with historical instances of human cases linked to close contact with infected animals.Geographically, FMD plagues numerous nations in Africa, southern Asia, and the Middle East, impacting the livestock environment.The disease's economic repercussions are staggering, with global losses estimated between 10-20 billion US dollars in endemic regions.The review provides a detailed analysis of the economic impact in various regions, emphasizing both direct and indirect losses.Diagnostic methods for FMD, including clinical diagnosis, laboratory procedures, and serological testing, are elucidated.The paper concludes with insights into the challenges of controlling FMD and the ongoing efforts to manage and prevent its outbreaks.Understanding the complexities of FMD is crucial for implementing effective control measures and safeguarding animal and human health on a global scale.