英文關鍵字
2019ncov
biohazard
city
contagious
corona
coronavirus
covid
covid19
disease
epidemic
face
flu
guy
health
healthcare
human
illness
individual
infect
infection
influenza
looking
male
man
mask
medical
medicine
novel
outbreak
outdoor
outside
pandemic
people
pneumonia
portrait
prevention
protect
quarantine
respiratory
safety
sick
sickness
stand
street
timelapse
urban
vaccine
virus
wearing