During two previous testing stints, the capital city found 83 positive cases out of nearly 1.3 million samples collected.
Based on its assessment, the city government stated that undetected COVID-19 cases may still remain in the community and the latest testing drive will concentrate on lockdown areas and high-risk people.
The campaign will take place from August 27 to September 4, with about 200,000 samples to be tested using the RT-PCR method.
If the rate of positive cases is below 1% and the cases are concentrated in central districts, Hanoi will mobilise local healthcare centres and hospitals to provide treatment for the infected people.
In a worse scenario of the positive rate being greater than 1%, the city is expected to call for support from other provinces and cities.
