英文關鍵字
2019
ambulance
assistant
breathing
cap
care
china
concept
corona
coronavirus
covid
covid19
doctor
drug
epidemic
face
hazard
health
healthcare
hospital
illness
laboratory
looking
mask
medical
medicine
microbiology
ncov
nurse
outbreak
pandemic
preventation
professional
protection
protective
respiratory
safety
science
scrubs
spread
stop
suit
surgeons
surgery
system
treatment
virus
woman
worker