How is plague transmitted?

Plague is primarily transmitted through rat fleas that have bitten an infected rat. This transmission route is significant because the fleas serve as vectors, carrying the bacteria Yersinia pestis, which is responsible for the disease. When a flea bites an infected rat and then subsequently bites a human or another animal, it can transfer the bacteria, leading to infection. This form of transmission highlights the importance of managing rodent populations and their fleas in areas where plague is a concern.

While other methods of transmission exist for different diseases, they are not associated with plague in the same way. For instance, while contaminated food can transmit certain illnesses, it is not a primary route for plague. Similarly, while direct contact with infected individuals may spread some infectious diseases, it is not how plague is transmitted. Airborne particles are also not responsible for transmitting plague, as the disease mainly spreads through flea bites rather than respiratory droplets. Understanding this specific transmission mechanism is crucial for implementing effective public health strategies.