attention
bacteria
border
caution
contagious
coronavirus
covid
covid19
dangerous
diseased
epidemic
europe
european
flag
flu strains
germ
global calamity
hiv
human
incubate
infection
infirm
influenza
israel
israeli
mers
model
molecule
ncov
novel
outbreak
pandemic
panic
protection
quarantine
rapidly
restrict
restriction
risk
robust
safety
sars
spread
symbol
tourism
transmit
transportation
travel
virus