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Showing 5 results for Hojabr Rajeoni
Toohid Tolouei, Mohammadreza Ghorani, Hossein Hosseini, Hamideh Najafi, Mohammad Reza Rezapanah, Naser Sadri , Zahra Ziafati Kafi , Ali Hojabr Rajeoni , Fahimeh Jamiri , Soroush Sarmadi , Arash Ghalyanchilangeroudi ,
Volume 14, Issue 2 (12-2020)
Abstract
Background and Aims: Avian Influenza (AI), an acute infectious disease of waterfowl, poultry, animals, and wild birds, is transmitted zoonotically to humans. There are some reports on the HPAI incidents in Iran: H5N8 and H5N1. The Iranian Veterinary Organization decided to vaccinate turkey flocks after the outbreak in high-risk provinces in Iran. The present work aimed to evaluate the vaccine’s serum response in turkey flocks in the provinces of high risks.
Materials and Methods: From Tehran (no:1), Isfahan (no: 3), Zanjan (no: 1), and Mazandaran (no:1) provinces, six broiler turkey farms were chosen and received the H5 vaccine (two times of vaccination for each farm). From each flock, 15 blood samples were taken. The HI test was conducted using 4 HA units of the homologous antigen and a U-bottomed microtiter plate.
Results: The antibody mean titers in the turkey farms previously receiving the vaccine were 1.23. However, they were 5.05 for those receiving the immunization twice (significant difference; p<0.05). Moreover, considering protection baseline 4, all flocks produced higher titer by injection of the vaccine twice.
Conclusion: Integrating with other control measures like good monitoring and biosecurity programs, vaccination is an appropriate and robust instrument for supporting control programs or AI eradication in endemically infected countries. The regular post-vaccination surveillance was performed by the Iranian Veterinary Organization (IVO), and the flocks were evaluated for silent infections.
Hossein Hosseini, Mohammad Hossein Fallah Mehrabadi, Ali Tolooe Zarrin , H Haghbin Nazarpak, Reza Khaltabadi Farahani, R Farahani, Saeedeh Abbasian, Ali Hojabr Rajeoni, Zahra Ziafati Kafi, Naser Sadri, Arash Ghalyanchi Langeroudi,
Volume 15, Issue 1 (6-2021)
Abstract
Background and Aims: Avian influenza (AI) is an acute infectious disease of poultry, waterfowl, wild birds, and animals, zoonotically transmitted to humans. Some incidents of HPAI are reported in Iran: H5N1 and H5N8. Iranian Veterinary Organization decides on vaccination (H5) of layer and breeder flocks in high-risk provinces following the outbreak in Iran. This study aimed to evaluate the serum response of the vaccine in the layer flocks of high-risk provinces.
Materials and Methods: Ten laying farms (Size: 30000-50000) were selected from Qazvin (no: 2) and Isfahan (no: 8) provinces that received the H5 vaccine (Four farms: 1 time; 6 farms: 2 times of vaccine shots). Twenty-five blood samples were taken from each flock. The HI test was carried out in a U-bottomed microtiter plate and 4 HA units of homologous antigen.
Results: The mean titers of antibodies in the poultry farms that received the vaccine once were 1.87, while those that received the immunization twice were 4.90 (significant difference; p<0.05). Also, if we consider protection baseline 4, 4 out of 6 flocks (~67%) could make it above it. Injection of the vaccine twice also improved CV.
Conclusion: In combination with other control measures such as good biosecurity and monitoring programs, vaccination is considered a suitable and powerful tool to support AI eradication or control programs in endemically infected countries if the Iranian Veterinary Organization (IVO) did regular post-vaccination surveillance and evaluated the flocks for silent infections.
Mohammadreza Ghorani, Arash Ghalyanchi Langeroudi, Monireh Khordadmehr, Ali Hojabr Rajeoni,
Volume 15, Issue 2 (12-2021)
Abstract
Background and Aims: The Inclusion Body Hepatitis disease (IBH) is one of the prevalent illnesses in our country these days and reported from different regions of Iran. In addition to its fatality, the importance of this disease is disturbing the vaccination program in poultry, especially broiler chickens, against other diseases like infectious bursal disease (IBD) and Newcastle disease (ND). This study aimed to determine the molecular phylogenetic and histopathological analysis of IBH in the Kashan region (Isfahan province).
Materials and Methods: Liver samples collected from infected chickens examined using PCR and histopathological procedure. Phylogenetic analysis was done by drawing a phylogenetic tree.
Results: All samples were positive with PCR. Also, the samples were investigated by histopathological procedure, and congestion, hemorrhage, focal necrosis, and intranuclear inclusion bodies in the hepatocytes were observed.
Conclusion: According to the phylogenetic analysis, the Iranian isolate in this research was similar to European countries' isolates. Other aspects of IBH disease like pathogenesis and epidemiology should be investigated.
Amir Modiri Hamadan, Arash Ghalyanchilangeroudi, Mohammad Hossein Fallah Mehrabadi, Shanbam Aghajantabar, Naser Sadri, Zahra Ziafati Kafi, Ali Hojabr Rajeoni, Iradj Ashrafi Tamai, Hadi Haghbin Nazarpak, Kaveh Parvandar Asadollahi, Ali Tolooe, Hossein Hosseini,
Volume 15, Issue 2 (12-2021)
Abstract
Background and Aims: although wild aquatic birds are known to be a significant reservoir for avian influenza viruses (AIV), Live bird markets can become polluted with and become an origin of transmission for avian influenza viruses including the high and low pathogenic strains of avian Influenza (HPAI and LPAI). Many countries affected by the Avian Influenza virus have restricted resources for plans in environmental health, disinfection, and infection control in live bird markets. There are few recently published reports of surveillance directed at this group. Active surveillance for avian influenza (AI) viruses in wild migratory aquatic birds sold at live bird markets (LBMs) was conducted in Iran from October 2019 to February 2020.
Materials and Methods: molecular diagnostic tools were employed for high-throughput surveillance of migratory birds that were sold in the live bird markets of Iran. This study included 400 both cloacal (CL) and nasopharyngeal (OP) samples from two bird species belonging to the two ordersCoot (Fulica arta) (100 CL & 100 OP) and Eurasian teal (Anas crecca) (100 CL & 100 OP). The samples were mainly obtained from captured or hunted birds. Every 5 samples were pooled together.
Results: 1 CL and 3 OP samples of Coots and 2 CL samples of Eurasian teals were positive for the influenza A virus.
Conclusion: These data are useful for designing new surveillance programs and are particularly relevant due to increased interest in avian influenza in wild aquatic birds, and efforts should be made to promote practices that could limit the maintenance and transmission of avian Influenza viruses in Live Bird market.
Dr Taha Zamani, Dr Mohammad Montazeri, Dr Hossein Hosseini, Dr Arash Ghalyanchilangeroudi, Dr Zahra Ziafati Kafi, Dr Naser Sadri, Dr Ali Hojabr Rajeoni,
Volume 15, Issue 2 (12-2021)
Abstract
Avian pox infection is a widespread disease with cyclical occurrence in endemic areas, especially in areas with dense poultry production. An unusual fowl pox outbreak has been diagnosed in 18 weeks old vaccinated Silkie herd during autumn 2021 in Qom province, Iran. The most characteristic observation of this outbreak was that the pox signs and lesions were observed on the feathered parts of the body. No Classical pox lesions were observed in the mouth, eyelids, and shank. The objective of this study was to report the occurrence of fowlpox in Silkie for the first time and describe clinical and molecular features of a case of atypical fowl pox, and to realize if a new isolate has been emerged and, if so, what the difference is and how it has appeared. The sample was collected from cutaneous lesions for molecular virus detection. Detected viruses were genetically similar to previous FP viruses.
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