The Kremlin welcomed Trump's offer of help while Russia's health watchdog said Moscow was "ready to assist the US in tackling infectious disease outbreaks," as the WHO asked Russia for additional information.
Rospotrebnadzor said Darya Shipilova, 28, died of "pneumonia of unknown aetiology" with no links to her work at the Irkutsk Anti-Plague Institute, but imposed quarantine on her contacts, confined 60 colleagues inside the facility and restricted access to hospitals including a maternity ward.