evidence: Citing the country’s State Emergency Epidemic Prevention Headquarters, KCNA said four "fever cases suspected of being infected with malignant epidemic occurred at a unit in Ryanggang province on August 23." [...] It has also hailed its use of daily PCR tests on water collected in border areas and claimed to have developed new methods to detect the virus and other diseases including monkeypox, according to Reuters. [...] The absence of independent data in the country means CNN can’t verify Pyongyang’s claims.