Understand what you’re seeing.
What is plague?
Plague is an infection caused by the bacterium Yersinia pestis. Its three main clinical forms are bubonic, pneumonic and septicaemic. Explore our health guides for symptoms, transmission and treatment.
What is confirmed about the Irkutsk investigation?
The situation page links dated observations to their original sources. Read the authority, date and category alongside each figure, and use the news feed to follow subsequent reporting.
Does zero mean there is no plague anywhere?
A zero describes only the named place, reporting period and category. Open a figure to see its source and scope.
Why do figures differ?
Reports can describe different dates, populations or definitions. Confirmed cases, suspected illness, quarantined contacts and deaths under investigation are separate categories.
How often are sources checked?
News discovery is scheduled every minute; official sources use their own collection intervals. Sources shows the last successful checks. Publication and translation may take longer.
What does “No data in this tracker” mean?
No observation has been published for that place and selected view. Use the sources and date filters to see what information is available.
How are corrections handled?
Corrections retain the previous version and publish the replacement with a reason. Important corrections can also be sent to affected subscribers.
Where can I read the complete news report?
Click the headline or Read full article to open the original publisher’s report. Source details preserves its original headline, date and attribution.
Where do I start with health questions?
Start with the symptoms guide, then explore how plague spreads, treatment and prevention. Seek urgent medical care for illness after a possible exposure.