A laboratory worker's death at an anti-plague research institute has sparked international concern. The worker's death has led to preventative measures being taken, which are now being wound down. Medical monitoring of the worker's contacts has been largely completed, with no dangerous pathogens found.

The World Health Organization is seeking more information about the incident. Russia's health watchdog has stated that there is no risk of an epidemic.

Further details about the incident and the response to it are available from the source, including information about the laboratory and the measures taken to address concerns about the worker's death.