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A suspected pneumonic plague case in Russia is raising alarm bells, but experts say it's very different from COVID-19. Caused by a bacterium rather than a virus, pneumonic plague requires close contact with a coughing patient to spread and is highly treatable with antibiotics — especially within the first 24 hours. Community spread is uncommon, and unlike COVID, asymptomatic transmission has not been documented.
A suspected pneumonic plague case in Russia's Irkutsk region — linked to a lab worker who broke a test tube containing the pathogen — has sparked concern among health officials and the public, drawing comparisons to the early days of COVID-19. But experts are quick to point out: these two diseases are very different.
Pneumonic plague is caused by Yersinia pestis, the same bacterium behind the Black Death, and is the only form of plague that spreads person-to-person — but only through close exposure to a coughing patient. Unlike COVID-19, asymptomatic transmission has not been documented, and community spread is uncommon. The good news? It's highly treatable with antibiotics, and people exposed can even receive preventive treatment before symptoms appear.
Key Takeaways:
Why it matters: While pneumonic plague is serious and potentially fatal without prompt treatment, its well-understood biology, established treatments, and limited transmission profile make it a very different — and more containable — threat than COVID-19 was in its early days.
