1. Pandemic is the worldwide outbreak of a disease in humans in numbers clearly in excess of normal.
2. Pandemic is an epidemic occurring over a very wide area, crossing interna tional boundaries, and usually affecting a large number of people; a global epidemic.
(2008, Geary W.Skick. Protecting your business in a pandemic : plans, tools, and advice for maintaining business continuity. ISBN: 978-0-313-34602-6)