The bubonic plague, although no longer prevalent or considered a public health crisis, continues to exist in several regions across the globe. In earlier times, it was famously referred to as the Black Death and caused the demise of an estimated 25 to 200 million individuals during the medieval era. Today, the number of reported cases annually is fewer than 5,000. While a recent incident in Mongolia gained international attention, the chances of a widespread outbreak remain low due to the advances in modern medicine.
Forms of Plague
Plague, caused by the Y. pestis bacteria and spread by infected fleas, manifests in three different forms: bubonic, septicemic, and pneumonic.
The bubonic plague occurs when the bacteria enter the lymphatic system, causing painful swelling of the lymph nodes, known as buboes. Other symptoms include fever, chills, fatigue, and headache.
In cases of septicemic plague, the bacteria enter the bloodstream, leading to symptoms such as high fever, chills, extreme weakness, abdominal pain, and bleeding into the skin and other organs. Gangrene may also develop in certain cases.
Pneumonic plague is a severe lung infection that can rapidly progress and become fatal if left untreated beyond 48 hours of onset. It is highly contagious and spreads through respiratory droplets. Symptoms include cough, bloody sputum, difficulty breathing, chest pain, and fever.
Bubonic Plague: The Most Common Form of the Disease
The bubonic plague is a prevalent form of the disease that primarily targets the lymph nodes. When the bacteria responsible for the plague infiltrate the lymph nodes, they quickly multiply, leading to the swelling of the affected organ. This swelling is accompanied by intense pain and a firm texture, earning it the name “bubo” and giving the bubonic plague its distinctive identity. Although human-to-human transmission of the disease is rare, if left untreated, the bubonic plague has the potential to spread throughout the body, progressing into septicemic or pneumonic plague.