Viral Outbreaks: 2019-2023 Overview comprehensively analyzes the major viral outbreaks that shaped global health from 2019 to 2023. This book explores the epidemiology, transmission, clinical characteristics, and global responses to key viral threats, including COVID-19, H1N1, Dengue, Zika, Avian Influenza, Ebola, and Lassa fever. Each chapter examines the unique challenges these viruses pose and discusses the World Health Organization's (WHO) critical role in combatting these outbreaks through coordinated efforts, guidelines, and vaccination campaigns.Key Features:- Detailed coverage of viral characteristics and global health responses.- Insights into WHO guidelines and public health interventions.- Practical lessons for pandemic preparedness and future perspectives.