abroad
adult
background
beige
borders
card
care
caucasian
certificate
color
contagious
control
disease
doctor
document
epidemic
flu
hand
health
identification
illness
immune
immunization
international
lifestyle
male
man
medicine
outbreak
pandemic
passport
people
person
prevention
profession
protection
quarantine
safety
sickness
status
tourism
transmitting
travel
vacation
vaccination
virus
work
young