WORLD HISTORY

Detailed explanation-1: -Bubonic plague is the most common form of plague and is caused by the bite of an infected flea. Plague bacillus, Y. pestis, enters at the bite and travels through the lymphatic system to the nearest lymph node where it replicates itself. The lymph node then becomes inflamed, tense and painful, and is called a ‘bubo’.

Detailed explanation-2: -Plague pandemics hit the world in three waves from the 1300s to the 1900s and killed millions of people. The first wave, called the Black Death in Europe, was from 1347 to 1351. The second wave in the 1500s saw the emergence of a new virulent strain of the disease.

Detailed explanation-3: -The Black Death was a devastating global epidemic of bubonic plague that struck Europe and Asia in the mid-1300s.

Detailed explanation-4: -Plague has occurred in people of all ages (infants up to age 96), though 50% of cases occur in people ages 12–45. It occurs in both men and women, though historically is slightly more common among men, probably because of increased outdoor activities that put them at higher risk.

Detailed explanation-5: -Bubonic plague: The incubation period of bubonic plague is usually 2 to 8 days. Septicemic plague: The incubation period of septicemic plague is poorly defined but likely occurs within days of exposure. Pneumonic plague: The incubation period of pneumonic plague is usually just 1 to 3 days. More items