This book provides knowledge about various fatal diseases caused by viruses, and the herbal treatments that are used for them. In this era, viruses have become a challenge for mankind, and their life-threatening actions are a cause of mortality and morbidity, as recently observed during the COVID-19 pandemic. Many traditional herbs were used at that time for prophylaxis, symptomatic treatment and as immunity boosters. The book focuses on herbs that have anti-viral effects and their mechanisms of action, making it useful for general research on herbal anti-viral treatments.