WHO seeks answers after Siberian lab death sparks plague fears Russia's health regulator said on Wednesday there were no risks of an epidemic breaking out in Siberia after a plague institute worker there died, as the World Health Organization pressed Moscow for more information about her cause of death. Key points and original sources are listed below.

• WHO seeks answers after Siberian lab death sparks plague fearsS1

• Russia's health regulator said on Wednesday there were no risks of an epidemic breaking out in Siberia after a plague institute worker there died, as the World Health Organization pressed Moscow for more information about her cause of death.S2