What is the etiologic agent for Bubonic plague?

The etiologic agent for Bubonic plague is Yersinia pestis, a bacterium that is primarily transmitted to humans through the bites of infected fleas, particularly those that infest rodents. Yersinia pestis is a Gram-negative, facultatively anaerobic bacillus that is responsible for many historical pandemics, including the Black Death in the 14th century.

The significance of identifying Yersinia pestis as the causative agent lies in its characteristics and the public health implications related to plague outbreaks. Understanding its transmission, symptoms, and treatment options is crucial for public health and environmental health specialists in managing and controlling potential outbreaks.

Other options refer to different pathogens that cause various diseases. For instance, Flavivirus is associated with diseases like West Nile virus and Zika. Rickettsia rickettsii is responsible for Rocky Mountain spotted fever, and Pasteurella pestis is not a recognized scientific name for any pathogen. Recognizing the correct etiologic agent helps in accurately diagnosing and implementing appropriate measures for the management of infectious diseases.