19
2019ncov
aid
alert
app
application
asia
business
city
concept
contact
corona virus
coronavirus
covid
covid19
covid19 quarantine
covid19 virus
crisis
data
disease
distancing
egov
face
global pandemic
infected
mask
mobile
outbreak
pandemic
people
person
phone
pneumonia
privacy
protective
quarantine
response
safety
sign
smart
software
street
tracing
tracking
urban
using
virus
wearing
woman
young
定額
contact tracing app COVID-19 Pandemic Coronavirus Mobile Application - people Wearing Face Mask Using Smart Phone App in City Street to Aid Contact Tracing in Response to the 2019-20 Coronavirus Pandemicの素材 [FY310150218953]
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