Community workers and volunteers have been mobilized to help maintain order as people queue for tests.
The mega-city with a population of more than 9.3 million has classified 10 areas as medium-risk for Covid-19 and implemented closed management.
The 17 airport workers were tested positive for COVID-19 during a routine nucleic acid testing for airport staff.
The municipal government has urged residents not to leave the city unless necessary.
Anyone leaving the city must produce a negative nucleic acid test certificate issued within 48 hours of their departure.
The rule does not apply to transit passengers.
Source: IANS
