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Journal of Entomology and Zoology Studies 2016; 4(3): 362-364
E-ISSN: 2320-7078
P-ISSN: 2349-6800
JEZS 2016; 4(3): 362-364
© 2016 JEZS
Received: 15-03-2016
Accepted: 16-04-2016
Asim Shamim
Department of Parasitology,
Faculty of Veterinary Science,
University of Agriculture
Faisalabad, Punjab, Pakistan.
Muhammad Sohail Sajid
Department of Parasitology,
Faculty of Veterinary Science,
University of Agriculture
Faisalabad, Punjab, Pakistan.
Correspondence
Asim Shamim
Department of Parasitology,
Faculty of Veterinary Science,
University of Agriculture
Faisalabad, Punjab, Pakistan.
Tick- borne “Bourbon” Virus: Current situation
and future implications
Asim Shamim and Muhammad Sohail Sajid
Abstract
Ticks transmit wide range of virus to human and animals all over the globe. Bourbon virus is new tick
transmitted virus from bourbon county of United States of America. This is first reported case from
western hemisphere. The objective of this review is to share information regarding present situation of
this newly emerged virus and future challenges.
Keywords: Global scenario, tick, bourbon virus
Introduction
Ticks (Arthropoda: Acari), an obligate blood imbibing ecto-parasite of vertebrates
[1]
spreads
mass of pathogens to humans and animals globally
[2]
. Ticks have been divided into two broad
families on the base of their anatomical structure i.e. Ixodidae and Argasidae commonly called
as hard and soft ticks respectively
[3]
. Approximately 900 species of ticks are on the record
[4-6]
and 10% of these known tick species
[7]
, communicate several types of pathogens to human
and animals of both domestic and wild types. Ticks ranked next to mosquitos as vectors of
human
[8],
and animal diseases. During the past few decades, it has been noticed that the
number of reports on eco-epidemiology of tick-borne diseases increased
[2]
. Ticks transmit a
number of species of viruses
[7]
, bacteria
[9]
, protozoa
[10, 11]
, rickettsia
[11-13]
, and fungi
[14]
.
Ticks have been reported to transmit at least 38 types of viruses belonging to different six
virus families (Asfarviridae, Reoviridae, Rhabdoviridae, Orthomyxoviridae, Bunyaviridae and
Flaviviridae
[7]
. All the tick-borne viruses are RNA viruses
[7]
. Some of the ticks communicate
viral diseases which are very much harmful for both humans and livestock species. Tick-borne
viruses (TBV) are a group of viruses with significant world-wide importance in public health
perspective. Most common tick transmitted viral diseases of human and animals are: Crimean-
Congo hemorrhagic fever virus (CCHF) transmitted by Hyalomma ticks
[15]
, Tick-borne
encephalitis virus (TBEV) transmitted by Ixodes ricinus
[16]
, Louping-ill virus (LIV)
[17]
, and
Colorado tick fever virus (CTFV)
[18]
, transmitted by Dermacentor andersoni
[19, 20]
. Viruses
vectored by ticks are found mainly in the genera; Ixodes, Haemaphysalis, Hyalomma,
Amblyomma, Dermacentor, Rhipicephalus (Boophilus)
[7]
. The aim of this article is to focus
on recently, new identified virus in Kansas, USA.
Bourbon Virus
Bourbon virus ‘Bourbon’ is the type of Thogotovirus (THOV) genus of family
Orthomyxoviridae which is RNA virus and has resemblances with Dhori and Batken virus
[21]
,
which has been isolated from Hylomma tick species
[22-25]
. The name of bourbon virus is
proposed in 2014 after the name of county (Bourbon) of Kansas USA where it was an
outbreak causing death of patient
[26]
.
Discovery
Bourbon Virus is discovered by Kosoy and his colleagues of centre of disease control (CDC)
and prevention in 2014 in Fort Collins, Colorado, when they are processing the blood sample
of the patient
[21, 27a]
.
[21]
Used next generation sequencing (NGS) technology to identify this
novel virus. In addition to this technology they also use real-time (RT) reverse transcription
polymerase chain reaction (PCR) to confirm presence in the blood sample of patient.
Morphology
Bourbon virus is found in different form but filamentous and roughly spherical forms are more
common. The diameter of Bourbon virus ranges from 100–130 nanometre.