Fred Soper, an American epidemiologist ( 1893 1977 ), discovered the importance of the sylvatic cycle of infection in non-human hosts, and that infection of humans was a " dead end " that broke this cycle.
32.
The classical agent is " T . spiralis " ( found worldwide in many carnivorous and omnivorous animals, both domestic and sylvatic ), but there are also seven primarily sylvatic species of " Trichinella " now recognized:
33.
The classical agent is " T . spiralis " ( found worldwide in many carnivorous and omnivorous animals, both domestic and sylvatic ), but there are also seven primarily sylvatic species of " Trichinella " now recognized:
34.
""'Panstrogylus geniculatus " "'is a blood-sucking sylvatic insect noted as a putative vector of minor importance in the transmission of " Trypanosoma cruzi " to humans; this is a parasite, which causes Chagas disease.
35.
The Darden also awards the "'C . Stewart Sheppard Distinguished Service Award "'to recognize first-year students exhibiting exceptional service to the School . ( The Dean and his spouse also donated two Nyssa sylvatic ( sourgum ) for beautification of the Virginia grounds .)
36.
Besides the urban cycle, both in Africa and South America, a sylvatic cycle ( forest cycle or jungle cycle ) is present, where " Aedes africanus " ( in Africa ) or mosquitoes of the genus " Haemagogus " and " Sabethes " ( in South America ) serve as vectors.
37.
The insect is described as sylvatic; subsisting primarily in humid forests, and is also known to inhabit vertebrate nesting places such as those of the armadillo ( " dasypus novemcinctus " or " dasypus " ), and is also involved in enzootic transmission of " T . cruzi " to those species.
38.
This is a major reason for the population decline, though there are other factors, such as " land development, deteriorating rangeland health, the encroachment of woody vegetation, sylvatic plague, and drought . " Conservation efforts include encouraging landowners to improve the health of their rangelands, and compensating farmers who set aside areas the prairie dogs may use.
