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	'''Sylvatic plague''' ~~refers to the manifestation of the [[bubonic plague]] in wild rodent populations and the fleas that infest them. The~~ disease is caused by the bacterium ''[[Yersinia pestis]]''~~, which is~~ primarily transmitted to humans ~~and other animals~~ through ~~the~~ bites of infected ~~fleas~~. Sylvatic plague is a ~~critical component~~ in the ~~ecology~~ of ~~plague~~, ~~as it represents~~ the ~~natural reservoir of ''Yersinia pestis'' in~~ the ~~environment. Understanding~~ sylvatic plague is ~~essential for public health measures aimed at preventing outbreaks of plague~~ in ~~human populations~~.		{{Short description\|An infectious disease affecting wild rodents and transmitted to humans}}

			[[File:Yersinia_pestis.jpg\|thumb\|right\|200px\|''Yersinia pestis'', the bacterium responsible for sylvatic plague]]

			'''Sylvatic plague''' is an infectious disease caused by the bacterium ''[[Yersinia pestis]]''. It primarily affects wild rodent populations and can be transmitted to humans through flea bites or direct contact with infected animals. Sylvatic plague is considered a zoonotic disease, meaning it can be transmitted from animals to humans.

			==Epidemiology==
			Sylvatic plague is found in various parts of the world, particularly in rural and semi-rural areas where wild rodents are abundant. The disease is endemic in certain regions of Africa, Asia, and the Americas. In the United States, sylvatic plague is primarily found in the western states, where it affects species such as prairie dogs, ground squirrels, and other rodents.

	==Transmission==		==Transmission==
	The primary ~~vector for the~~ transmission of sylvatic plague is fleas ~~that have fed~~ on infected ~~rodents~~. ~~The most common scenario involves wild rodents~~, ~~such as prairie dogs~~, ~~squirrels~~, and ~~rats~~, ~~which harbor~~ the ~~infected fleas. When these rodents die~~, the ~~fleas seek new hosts~~, which ~~can include humans~~, leading to ~~outbreaks~~ of ~~bubonic~~ plague. ~~Transmission~~ can also ~~occur through direct contact with infected animals or their bodily fluids~~.		The primary mode of transmission of sylvatic plague is through the bite of infected [[fleas]], which are vectors for the ''Yersinia pestis'' bacterium. Fleas become infected by feeding on the blood of an infected rodent. Humans can become infected through flea bites, handling infected animals, or inhaling respiratory droplets from infected animals.

			==Clinical Manifestations==
			In humans, sylvatic plague can present in several forms, including:

			* '''Bubonic plague''': Characterized by swollen and painful lymph nodes, called buboes, fever, chills, and weakness.
			* '''Septicemic plague''': Occurs when the infection spreads to the bloodstream, causing fever, chills, abdominal pain, and bleeding into the skin and other organs.
			* '''Pneumonic plague''': The most severe form, which occurs when the bacteria infect the lungs, leading to respiratory symptoms such as cough, chest pain, and difficulty breathing.

			==Diagnosis==
			Diagnosis of sylvatic plague is based on clinical symptoms, history of exposure, and laboratory tests. Laboratory confirmation involves isolating ''Yersinia pestis'' from blood, sputum, or lymph node aspirates. Serological tests can also detect antibodies against the bacterium.

	==~~Symptoms and~~ Treatment==		==Treatment==
	~~The symptoms~~ of sylvatic plague ~~in humans are similar to those of bubonic plague, including fever~~, ~~chills~~, ~~headache~~, and ~~swollen lymph nodes, known as buboes~~. ~~If left untreated~~, ~~the infection can spread to the lungs, resulting in pneumonic plague, or enter the bloodstream, causing septicemic plague~~, ~~both of which can~~ be ~~fatal. Treatment typically involves antibiotics, which are most effective when administered early~~ in ~~the course of the disease~~.		Early diagnosis and treatment are crucial for effective management of sylvatic plague. Antibiotics such as streptomycin, gentamicin, doxycycline, and ciprofloxacin are effective against ''Yersinia pestis''. Supportive care, including fluid management and respiratory support, may be necessary in severe cases.

	==Prevention==		==Prevention==
	~~Prevention of sylvatic plague involves controlling rodent populations and~~ reducing ~~human~~ exposure to fleas~~. This can include public health measures such as insecticide application in areas where outbreaks are occurring~~, ~~as well as personal protective measures like~~ using insect repellent and ~~avoiding contact with wild rodents.~~		Preventive measures include reducing exposure to wild rodents and their fleas, using insect repellent, and wearing protective clothing in endemic areas. Public health measures such as controlling rodent populations and educating communities about the risks of sylvatic plague are also important.

	~~==Ecological Impact==~~
	~~Sylvatic plague has significant ecological impacts, particularly on populations of susceptible wild rodents. Outbreaks can lead to significant mortality~~ in ~~these populations, affecting the biodiversity and ecological balance of affected~~ areas. ~~Conservation efforts sometimes include vaccination of wild~~ rodent populations ~~to prevent outbreaks~~ of sylvatic plague.

	==~~Historical Context~~==		==Related pages==
	Sylvatic plague has been a part of the natural environment for centuries, and historical outbreaks of bubonic plague in human populations, such as the Black Death in the 14th century, are believed to have originated from sylvatic reservoirs. The study of sylvatic plague and its transmission dynamics is crucial for understanding the historical and contemporary patterns of plague outbreaks.		* [[Plague (disease)]]
			* [[Yersinia pestis]]
			* [[Zoonosis]]
			* [[Vector (epidemiology)]]

	[[Category:~~Diseases~~]]		[[Category:Zoonotic bacterial diseases]]
			[[Category:Rodent-carried diseases]]
	[[Category:Infectious diseases]]		[[Category:Infectious diseases]]
	~~[[Category:Zoonoses]]~~

	~~{{medicine-stub}}~~

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'''Sylvatic plague''' refers to the manifestation of the [[bubonic plague]] in wild rodent populations and the fleas that infest them. The disease is caused by the bacterium ''[[Yersinia pestis]]'', which is primarily transmitted to humans and other animals through the bites of infected fleas. Sylvatic plague is a critical component in the ecology of plague, as it represents the natural reservoir of ''Yersinia pestis'' in the environment. Understanding sylvatic plague is essential for public health measures aimed at preventing outbreaks of plague in human populations.

==Transmission==
The primary vector for the transmission of sylvatic plague is fleas that have fed on infected rodents. The most common scenario involves wild rodents, such as prairie dogs, squirrels, and rats, which harbor the infected fleas. When these rodents die, the fleas seek new hosts, which can include humans, leading to outbreaks of bubonic plague. Transmission can also occur through direct contact with infected animals or their bodily fluids.

==Symptoms and Treatment==
The symptoms of sylvatic plague in humans are similar to those of bubonic plague, including fever, chills, headache, and swollen lymph nodes, known as buboes. If left untreated, the infection can spread to the lungs, resulting in pneumonic plague, or enter the bloodstream, causing septicemic plague, both of which can be fatal. Treatment typically involves antibiotics, which are most effective when administered early in the course of the disease.

==Prevention==
Prevention of sylvatic plague involves controlling rodent populations and reducing human exposure to fleas. This can include public health measures such as insecticide application in areas where outbreaks are occurring, as well as personal protective measures like using insect repellent and avoiding contact with wild rodents.

==Ecological Impact==
Sylvatic plague has significant ecological impacts, particularly on populations of susceptible wild rodents. Outbreaks can lead to significant mortality in these populations, affecting the biodiversity and ecological balance of affected areas. Conservation efforts sometimes include vaccination of wild rodent populations to prevent outbreaks of sylvatic plague.

==Historical Context==
Sylvatic plague has been a part of the natural environment for centuries, and historical outbreaks of bubonic plague in human populations, such as the Black Death in the 14th century, are believed to have originated from sylvatic reservoirs. The study of sylvatic plague and its transmission dynamics is crucial for understanding the historical and contemporary patterns of plague outbreaks.

[[Category:Diseases]]
[[Category:Infectious diseases]]
[[Category:Zoonoses]]

{{medicine-stub}}

Sylvatic plague - Revision history

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