North Korea's new suspected COVID-19 cases stayed at zero for the sixth consecutive day, with apparently no remaining fever patients under treatment, according to its state media Thursday.

No new fever cases were reported over a 24-hour period until 6 p.m. the previous day, the official Korean Central News Agency (KCNA) said, citing data from the state emergency anti-epidemic headquarters.

It did not provide information on additional deaths or those under treatment. As of July 5, the death toll stood at 74, with the fatality rate at 0.002 percent.

The total number of fever cases from late April to 6 p.m. Wednesday stood at 4.77 million and 99.998 percent of them had recovered, it added, reporting five new recoveries.

The previous day, the KCNA had said that five patients were being treated, suggesting that all fever patients have recovered.

Despite the apparent absence of new fever cases, the KCNA said the country is still maintaining its antivirus measures.

"Activities for consolidating the current anti-epidemic situation and preventing the outbreak of new epidemics are intensified across the country," it said in a separate English-language report. "Unified command and control over the overall anti-epidemic work is maintained."

Health authorities have introduced a "quadruple test information system for COVID-19" and are implementing preventative measures against the spread of other infectious diseases entering the country, considering the global spread of monkeypox, it added.

The North disclosed its first COVID-19 case on May 12 after claiming to be coronavirus-free for over two years and immediately declared a "maximum emergency" virus control system. (Yonhap)