"The WHO appears to have updated its fact sheet on plague the same day the Irkutsk lab worker presented at hospital, with (probably) the plague." This claim appeared in a number of posts on X, with some users suggesting the timing indicates that the organization may have known something about the alleged case before it became public.

Original review summary

The review says the WHO updated its plague fact sheet on September 29, the day the laboratory worker was hospitalized, but found no evidence linking the events. It describes the update as part of a broader infectious-disease publication cycle, with surveillance data covering 2019 to 2025 and the latest edition of the Weekly Epidemiological Record released on September 25.[S1]