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OMSK HAEMORRHAGIC FEVER (Contact) Please CLICK on
underlined links for details: A Flavivirus causes this fever, which is
similar to Kyasanur Forest Disease. It is found in the Omsk Region of
Siberia. The principal vector is Dermacentor
reticulatus (= D. pictus)
that draws blood from rodents such as muskrats, which are the main amplifying
hosts (Service 2008). Other vectors
include Dermacentor marginatus
and Ixodes persulcatus. Infected
ticks may pass infections transstadially to other tick nymphs or adults, and
transovarial transmission also occurs (Service 2008). Humans coming into contact with infected
ticks can cause infection, but the disease can also be passed directly by an
infected animal's urine or feces.
Consuming milk of infected goats or sheep can also cause infection. Symptoms vary
but are similar to other virus-caused fevers. Early removal of ticks is essential to recovery. = = = = = = = = = = = = =
= = = = = = = Key References: <medvet.ref.htm> <Hexapoda> Matheson, R. 1950.
Medical Entomology. Comstock
Publ. Co, Inc. 610 p. Service, M. 2008. Medical
Entomology For Students. Cambridge
Univ. Press. 289 p Legner, E.
F.
1995. Biological
control of Diptera of medical and veterinary importance. J. Vector Ecology 20(1): 59_120. Legner,
E. F. 2000. Biological control of aquatic
Diptera. p. 847_870. Contributions to a Manual of Palaearctic
Diptera, Vol. 1, Science Herald, Budapest. 978 p. |