Informative Essay: Plagues

Infectious diseases, also called infectious diseases, are caused by pathogenic microorganisms (bacteria, viruses, parasites, fungi etc.) and are transmitted either directly or indirectly from person to person. Pest is a fatal infection (animal disease) caused by the gram negative bacterium Yersinia pestis. Pest is a disease that affects humans and other mammals. Bacteria are mainly found in rats and fleas that eat them. The plague is transmitted to humans and other animals by carrying pest bacterial and flea bites, infecting wounds of animals, inhaling aerosols, and eating contaminated foods with plague bacteria .

Pneumonic plague or pulmonary plague is the most virulent form of plague. Incubation time can be shortened to around 24 hours. Everyone suffering from a pulmonary plague can spread disease to others via small droplets. Untreated pulmonary plague can become fatal if it is not diagnosed and treated early. However, if it is detected and treated promptly (within 24 hours after onset of symptoms) the recovery rate is high. Plague epidemics occurred in Africa, Asia and South America, but since the 1990s most people have infected in Africa. Three popular countries are Democratic Republic of Congo, Madagascar and Peru. In Madagascar, plague is reported almost every year during the epidemic period (September to April)

For more than 10 years since 2001, Zambia, India, Malawi, Algeria, China, Peru and the Democratic Republic of the Congo are the most affected plague and more than 1,100 patients occur in the Democratic Republic of Congo alone. The number of cases conservatively reported to WHO every year is 1,000 to 2,000. From 2012 to 2017, Madagascar started periodically quarantine epidemics due to political turmoil and bad sanitary conditions. Between 1900 and 2015, 1,036 plague plants occurred in the United States, an average of nine cases per year. In 2015, 16 people in the western United States developed plague. Two of them are Yosemite National Park. These American cases usually occur in northern New Mexico, northern Arizona, southern Colorado, California, southern Oregon, and western Nevada.

Pesto was brought to the United States first in 1900. Between 1900 and 2012, 1,006 confirmed or possible human diseases occurred in the United States. More than 80% of plague cases in the United States are cases of glands. In recent decades, an average of 7 human plagues have been reported each year (range: 1 to 17 cases per year). Plague occurs in people of all ages (babies under 96 years old), but 50% of cases occur in people aged 12 to 45 years. The world reports 1,000 to 2,000 cases annually to the World Health Organization (WHO), but the actual number may be much higher