英文關鍵字
2019
ah1n1
ailment
avian
bacterium
care
china
chinese
corona
coronavirus
cov
covid
deadly
disease
earth
epidemic
face
flu
flue
geography
global
h1n1
hazard
health
human
illness
infect
infected
infection
influenza
map
mask
medical
medicine
mers
microbe
ncov
outbreak
pandemic
pathogenic
planet
population
protection
respiratory
sars
sick
sickness
splash
virus
world
wuhan