Russia reports a worker at a Siberian plague institute got pneumonia from an unknown cause and died

Russian authorities have quarantined a hospital and are monitoring contacts of a plague research institute employee who died after contracting pneumonia of an unknown cause. Officials reported that the worker was based at a Siberian institute. Despite the nature of her employment, authorities stated they found no evidence that the illness was caused by any of the pathogens she worked with. The investigation into the cause of the pneumonia continues while safety measures remain in place.