WHO Awaits Clarity on Russian Lab Worker's Death

The World Health Organization (WHO) stated on Saturday that it still lacks definitive information about the cause of death of a young worker at a Russian laboratory that studies plague and other dangerous illnesses. The U.N. health agency has referenced preliminary, unconfirmed reports suggesting pneumonic plague, a severe form of the disease distinct from the bubonic plague associated with the Black Death.

Pneumonic plague can spread between people and, if detected and treated promptly, has a high recovery rate. In its latest Disease Outbreak News, the WHO emphasized the need for continued investigation into the incident.

According to the WHO, Russian health officials have conducted over 5,500 tests and have reported no evidence of dangerous pathogenic microorganisms. "Additional clinical, epidemiological and laboratory information, including confirmation of the diagnosis in the deceased laboratory worker, is required to improve confidence in the assessment," the WHO stated.

The organization also addressed what it previously referred to as a "purported second case," which it had attributed to information from British and Serbian tabloid news outlets citing unspecified Russian reports. Russia has denied the existence of any such second case.