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Seroprevalence And Risk Factor Analysis Of Bluetongue Virus In Lahore And Faisalabad Districts Of Punjab Province, Pakistan

By: Syeda Marriam Maqbool (2014-VA-522) | Dr. Muhammad Zubair Shabbir.
Contributor(s): Dr. Ali Ahmad Sheikh | Dr. Maryam Javed.
Material type: materialTypeLabelBookPublisher: 2016Description: 54p.Subject(s): Department of MicrobiologyDDC classification: 2497-T Dissertation note: Domestic animals play an important role in the rural and agricultural economies of developing countries. Therefore, animal diseases pose a threat to country’s economy, animal welfare, the environmental and public health. One of the important animal diseases is Bluetongue, listed as notifiable disease by OIE. Causative agent is Bluetongue virus (BTV) an arbovirus that belongs to genus Orbivirus with in family Reoviridae. The main route of transmission is through the bite of Culicoides biting midges. Disease is enzootic and widely distributed in areas where susceptible animals and vector species are prevalent. It has been reported worldwide including the neighboring countries of Pakistan. BTV is also considered an endemic in Pakistan but little information is available on its epidemiology in this area. Serological tests can detect antibodies produced against infection and helpful to analyze the prevalence of a pathogen in circumstances when there lacks vaccination practice to ruminants in a given geographical area. Competitive ELISA was used to identify antibodies to BTV in the sera samples of animals in Faisalabad and Lahore districts. Blood samples were collected from randomly selected villages of both districts and processed for serum separation by using gel/clot activator tubes. Separated serum was analyzed by competitive ELISA. Further, statistical analysis was done by OpenEpi to check the association between BTV seroprevalence and potential risk factors. Later the BTV prevalence has been mapped in relation to different villages of both districts. Results of present study revealed that Bluetongue virus is prevalent in Faisalabad and Lahore districts with high seropositivity observed for Faisalabad district. Antibodies to BTV were detected in all studied animals irrespective of their age, sex, parity and breed. Risk factor analysis is implicating the association of BTV seroprevalence with breed, sex and age for sheep, SUMMARY 44 cattle and buffalo respectively. Further studies should be conducted to expand the geographical area for the assessment of Bluetongue prevalence and to explore the genetic diversity of Bluetongue virus.
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Thesis Thesis UVAS Library
Thesis Section
Veterinary Science 2497-T (Browse shelf) Available 2497-T
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Domestic animals play an important role in the rural and agricultural economies of developing countries. Therefore, animal diseases pose a threat to country’s economy, animal welfare, the environmental and public health. One of the important animal diseases is Bluetongue, listed as notifiable disease by OIE. Causative agent is Bluetongue virus (BTV) an arbovirus that belongs to genus Orbivirus with in family Reoviridae. The main route of transmission is through the bite of Culicoides biting midges. Disease is enzootic and widely distributed in areas where susceptible animals and vector species are prevalent. It has been reported worldwide including the neighboring countries of Pakistan. BTV is also considered an endemic in Pakistan but little information is available on its epidemiology in this area. Serological tests can detect antibodies produced against infection and helpful to analyze the prevalence of a pathogen in circumstances when there lacks vaccination practice to ruminants in a given geographical area.
Competitive ELISA was used to identify antibodies to BTV in the sera samples of animals in Faisalabad and Lahore districts. Blood samples were collected from randomly selected villages of both districts and processed for serum separation by using gel/clot activator tubes. Separated serum was analyzed by competitive ELISA. Further, statistical analysis was done by OpenEpi to check the association between BTV seroprevalence and potential risk factors. Later the BTV prevalence has been mapped in relation to different villages of both districts.
Results of present study revealed that Bluetongue virus is prevalent in Faisalabad and Lahore districts with high seropositivity observed for Faisalabad district. Antibodies to BTV were detected in all studied animals irrespective of their age, sex, parity and breed. Risk factor analysis is implicating the association of BTV seroprevalence with breed, sex and age for sheep,
SUMMARY
44
cattle and buffalo respectively. Further studies should be conducted to expand the geographical area for the assessment of Bluetongue prevalence and to explore the genetic diversity of Bluetongue virus.

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