translation.en: The event may be sudden and unexpected, as in a local outbreak of communicable disease, or slowly evolving as in a disease pandemic.
translation.mt: L-avveniment jista’ jkun għall-għarrieda u mhux mistenni, bħal f’tifqigħa lokali ta’ marda li tittieħed, jew jevolvi bil-mod bħal f’marda pandemika.