An epidemic occurring worldwide, or over a very wide area, crossing international boundaries, and usually affecting a large number of people See also epidemic
A pandemic is an occurrence of a disease that affects many people over a very wide area. They feared a new cholera pandemic. a disease that affects people over a very large area or the whole world endemic, epidemic epidemic (pandemos, from pan- ( PAN-) + demos )
an epidemic that is geographically widespread; occurring throughout a region or even throughout the world existing everywhere; "pandemic fear of nuclear war"