Wuhan, capital of central Hubei province, registered the five new cases on Thursday, the National Health Commission said, down from eight cases the previous day. The commission routinely reports new cases the day after the data is collected.
Excluding Wuhan, Hubei has reported no new infections for eight consecutive days.
The commission said on Thursday China's coronavirus epidemic had passed its peak, even as alarm over the virus intensified elsewhere with global markets suffering record falls and governments unveiling measures to try to slow the spread of a disease that has infected more than 127,000 people worldwide.
The financial hub of Shanghai reported two new cases, while Beijing saw one, all imported by people traveling to China from affected areas abroad, the health authority said.
Those cases brought the total number of new infections in mainland China to eight on Thursday, down from 15 the previous day, and the lowest since the healthy authority started publishing nationwide figures in January.
To date, the total accumulated number of cases in mainland China is 80,813.
The coronavirus has killed more than 3,000 people in mainland China.
It had also stalled the world's second-largest economy as, beginning in January, authorities ordered work stoppages, travel restrictions and home quarantines to contain the spread of the pathogen.
As the tough counter-epidemic measures start to pay off, local governments have been ordered to revive their economies, especially those in areas that have not had to deal with extensive virus outbreaks.
Outside Hubei, about 60% of small- and medium-sized firms and 95% of large ones have gone back to work, vice industry minister Xin Guobin said on Friday.
As China gets domestic economic activity back to normal it will also coordinate with other countries to push forward on resuming business as the pandemic stokes concern about China's prospects, Xin said.
The death toll in mainland China reached 3,176 as of the end of Thursday, up by seven from the previous day.In Hubei, there were six new deaths, with Wuhan accounting for all of them.