英文關鍵字
covid
coronavirus
pandemic
test
package
lateral
flow
social
distancing
hygiene
measures
swab
antigen
sterile
sarscov2
corona
crisis
testing
ppe
distance
epidemic
2020
lockdown
quarantine
medical
hospital
virus
science
sars
health
disease
global
prevention
spread
care
england
britain
british
uk
staff
gloves
protection
equipment
laboratory
english