Mosquitoes, in particular, are responsible for some of the most prolific illnesses. The Zika virus, linked to severe birth defects, spread rapidly through the Americas in the 2010s.
The Growing Threat of Drug-Resistant Tuberculosis
When a pathogen jumps from a vertebrate animal to a human, it can create the perfect storm for a new pestilence. This catastrophic event was caused by the bacterium Yersinia pestis , transmitted primarily by fleas living on black rats.
Drug-resistant tuberculosis is a particular nightmare, requiring longer, more toxic, and less effective treatment courses. Similarly, the Justinian Plague in the 6th century demonstrated the power of disease to alter the course of empires long before modern medicine.
The Growing Threat of Drug-Resistant Tuberculosis
Additionally, ticks carrying Lyme disease have expanded their range in North America and Europe, making these tiny arachnids a growing concern for public health officials. This evolving landscape means that the definition of a pestilence is changing, driven not just by the pathogen, but by our own inability to fight it.
More About What are examples of pestilence
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