Large Animal Internal Medicine
Yousef Davoudi; Mohammad nouri; Mohammad Rahim Haji Hajikolaie; Shobeir Yazdani Paraei; Amir Javadi; Saleh Esmaeilzadeh
Articles in Press, Accepted Manuscript, Available Online from 02 May 2024
Abstract
In November 2021, a cattle farm located in Dasht-e-Moghan city of Ardabil province experienced a concerning incident. During the visit to the farm, 70 cows experienced stillbirths, abortions, and the births of calves with congenital abnormalities such as arthrogryposis and hydranencephaly To investigate ...
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In November 2021, a cattle farm located in Dasht-e-Moghan city of Ardabil province experienced a concerning incident. During the visit to the farm, 70 cows experienced stillbirths, abortions, and the births of calves with congenital abnormalities such as arthrogryposis and hydranencephaly To investigate the cause of this outbreak, brain tissue samples of two calves with hydranencephaly that died within days after their birth were analyzed. PCR testing was conducted for multiple viruses, including Bovine viral diarrhea (BVD), Border disease, Akabane, Schmallenberg, and Bluetongue viruses. The results indicated positive only for Akabane virus. Additionally, blood samples were collected from 60 cows and calves that were over 8 months old to determine the presence of antibodies against the Akabane and Schmallenberg viruses. Blood samples were collected from 60 cows and calves over 8 months of age. Due to limited facilities, only antibodies against Akaban and Schmallenberg viruses were examined using the Competitive Enzyme Linked Immunosorbent Assay (C-ELISA). Out of the 60 cows and calves tested, 12 cows were found to have antibodies against the Akaban virus, and 15 cows had antibodies against the Schmallenberg virus. Interestingly, nine cows tested positive for both the Akaban and Schmallenberg viruses.In conclusion, based on clinical findings and results, it appears that the diagnosed disease is Akaban. However, it is important to note that further investigation is needed to determine the source of the virus and their transmission route.
Mehdi Rasekh; Ali Sarani; Amirsajad Jafari
Volume 13, Issue 3 , September 2022, , Pages 443-446
Abstract
Schmallenberg virus (SBV) is an emerging single-stranded RNA virus being classified under Simbu serogroup of Bunyaviridae family. This study aimed to detect antibodies against SBV in cattle for the first time in three eastern provinces of Iran. Blood samples were randomly collected from jugular veins ...
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Schmallenberg virus (SBV) is an emerging single-stranded RNA virus being classified under Simbu serogroup of Bunyaviridae family. This study aimed to detect antibodies against SBV in cattle for the first time in three eastern provinces of Iran. Blood samples were randomly collected from jugular veins of 270 cattle, from 19 farms in Razavi Khorasan, South Khorasan and Sistan and Baluchistan provinces. Separated sera were analyzed to find SBV antibody using ID vet® SBV indirect multi-species enzyme-linked immunosorbent assay test kit. From a total of 273 serum samples analyzed for SBV presence, 12.45% (n = 34) were positive for SBV antibody. Risk factors including breed, age and geographic area showed a statistically significant relationship with the virus prevalence. In conclusion, the seroprevalence of SBV is not high; but it is considerable in the studied parts of Iran. This is the first study regarding SBV seroprevalence in cattle population of eastern Iran and further studies about the virus epidemiology are recommended.
