The market is the place most visited by people.
If there is one Covid-19 case, then it could spread outside in an instant.
The government in Danang City, Vietnam implements a ticketing system when shopping in the market to find out the spread of Covid-19.
Each family will receive 5 tickets containing their complete identity data and if shopping, the tickets are exchanged and the card validity period is only 15 days.
This ticketing system can track if at any time someone is identified as positive for Covid-19 while shopping in the market.
The local government has printed more than 12000 tickets.
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