WHO urges Russia to provide more details about the death of a researcher at a Siberian plague laboratory, as the incident raises speculation about possible exposure to pneumonic plague.
While Russian officials confirm the deceased had not transmitted the bacterium to colleagues, no definitive cause of death has been established.
Pneumonic plague, the most aggressive form of plague, attacks the lungs and can spread through close contact with infected droplets.
Experts warn that the disease can be fatal within 24–48 hours if not treated promptly, but antibiotics are highly effective when administered early.
Dr Zania Stamataki of the University of Birmingham notes that laboratory research remains essential to diagnose, vaccinate, and build resistance to plague across the globe.
With an estimated 1,000 to 3,000 global cases of plague annually, including bubonic, septicaemic, and pneumonic forms, continued surveillance and preparedness are critical.
