endemic C2+

/ɛnˈdɛmɪk/ native to or regularly found in a particular place or group

interepidemic C2+

/ˌɪntɚˌɛpɪˈdɛmɪk/ occurring in the period between successive epidemics

pandemia C2+

/pænˈdimiə/ a widespread epidemic affecting a whole region or population

pandemian C2+

/pænˈdimiən/ relating to or characteristic of a pandemic; sensual or worldly in older usage