H. Hosseini
Department of Clinical Science, Faculty of Veterinary Medicine, Karaj Branch, Islamic Azad University, Alborz, Iran
[ 1 ] - Molecular detection of Mycoplasma synoviae from backyard and commercial turkeys in some parts of Iran
M. synoviae (MS) is an economically important pathogen and the major cause of airsacculitis and infectious synovitis in turkeys. Infection with this pathogen may remain asymptomatic but can render infected birds susceptible to secondary infections. This study was carried out for the molecular detection of MS infection in commercial and backyard turkey flocks in Tehran, Semnan, Isfahan, Qazvin, ...
[ 2 ] - A Survey of Pathogenic Avian Mycoplasma Involvement in Multicausal Respiratory Disease in Broiler Flocks
BACKGROUND: Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) are the most important and pathogenic mycoplasma in chicken production. The tendency of avian mycoplasma for interaction with other pathogen is well-known. Interaction within several disease-producing factors in respiratory tract exacerbate the disease and known as multicausal respiratory disease. OBJECTIVES: In recent years...
[ 3 ] - Metastatic cutaneous neuro- myofibroblastic sarcoma induced by avian leukosis virus subgroup J in a rooster (Gallus gallus domesticus)
An adult native cock (Gallus gallus domesticus) referred to the aviary clinic with multiple different sizes of round dermal nodules. The bird died few days later, and was then submitted for further evaluation. Macroscopic and microscopic examinations as well as a PCR test were done to identify type and cause of the tumor. In histopathological assessment of biopsy specimen, it consisted of inter...
[ 4 ] - Phylogenetic study based on the phosphoprotein gene of Iranian Newcastle disease viruses (NDV) isolates, 2010 -2012
BACKGROUND: Newcastle disease virus (NDV) is the causativeagent of the Newcastle disease (ND), a highly contagiousdisease in birds that causes significant economic losses to thepoultry industry worldwide. ND is endemic in Iran and outbreaksare reported regularly in commercial poultry flocks and differentspecies of birds. OBJECTIVES:The current study was carried outto characterize NDV based on p...
[ 5 ] - تفکیک سویه های ویروس بیماری بورس عفونی جداشده از گله های طیور ایران به وسیله آنالیز منحنی ذوب با دقت بالا (High Resolution Melt)
زمینه مطالعه: بیماری بورس عفونی (Infectious bursal disease, IBD) بیماری با واگیری بسیار بالا در طیور جوان است. برای صنعت طیور، تمایز بین جدایه های کلاسیک حاد و فوق حاد ویروس IBD اهمیت زیادی دارد تا برنامه مناسبی برای واکسیناسیون اتخاذ شود. تست های سرولوژیک و مولکولی معمول بسیار پرزحمت، زمان بر و از نظر حساسیت متغیر می باشند. این در حالی است که منحنی ذوب با دقت بالا روشی نسبتا سریع می باشد. هدف:...
[ 6 ] - ارزیابی فارمی واکسن زنده متاپنوموویروس پرندگان در مزرعه جوجه گوشتی
متاپنوموویروس پرندگان قادر به ایجاد عفونت حاد و مسری قسمت فوقانی دستگاه تنفس در ماکیان و بوقلمون است. از راههای کنترل بیماری، استفاده از واکسن می باشد. هدف این مطالعه، ارزیابی کارایی یک نوع واکسن زنده پنوموویروس در یک مرغداری جوجه گوشتی بود. در یک مرغداری جوجه گوشتی با سابقه درگیری به پنوموویروس، واکسن پنوموویروس در 14 روزگی به روش قطره چشمی به گروه آزمایش تجویز شد. شاخص های پرورشی بصورت هفتگی ...
[ 7 ] - Molecular Characterization and Phylogenetic Study of Newcastle Disease Viruses Isolated in Iran, 2014–2015
Newcastle disease (ND) is a highly contagious disease that affects many species of birds and causes significant economic losses to the poultry industry worldwide and the pathogenicity of Newcastle disease virus (NDV) strains varies with different virulence. Samples were collected from chicken commercial farms in Iran during 2014–2015. ND virus were characterized (NDV) by partial sequences...
[ 8 ] - Molecular Detection of Lentogenic Strain of Newcastle Disease Virus in Commercial Broiler Chickens Using Sentinel Birds in Iran: The First Report
Abstract Background and Aims: Newcastle disease (ND) is a highly contagious disease that affects many species of birds and causes significant economic losses to the poultry industry worldwide and the pathogenicity of Newcastle disease virus (NDV) strains varies with different virulence. We aim to detect lentogenic (low virulence) ND virus (ND/IR 2010) using sentinel birds and molecular det...
[ 9 ] - Detection and Molecular Characterization of Avian Rotaviruses in Broiler Farms in Guilan
Background: Avian rotaviruses are one of the important agents of enteritis in birds and have a worldwide distribution. These viruses have an important role in runting and stunting syndrome in chickens. Objectives: The aim of this study was detection and molecular characterization of avian rotaviruses in broiler farms in Guilan province. Methods: In this study, 100 samples were collected on diff...
[ 10 ] - Vaccine Knowledge and Attitude of Veterinarians Working in Veterinary Vaccine Supplier and Administrator Centers in Iran
Poultry vaccines are intensively used to prevent and control infectious poultry diseases. The aim of vaccination is to reduce the occurrence of clinical disease. Several factors affect vaccination programmers which emphasize the crucial responsibility of person designing the vaccination program. There are limited studies evaluating the knowledge and attitude of veterinarians toward veterinary v...
[ 11 ] - بررسی هم‌خوانی دو نوع پرایمر RT-PCR جهت تشخیص ویروس آنفلوانزای پرندگان (H9N2)
هدف از انجام این تحقیق استفاده از دو نوع پرایمر RT-PCR برای تشخیص ویروس آنفلوانزای H9N2 پرندگان و مقایسه هم‌خوانی این دو روش نسبت به همدیگر بود تا مشخص شود کدام روش در رقت‌های متوالی تهیه شده دارای آستانه تشخیص بیشتری است. برای این منظور میزان EID50 ویروس آنفلوانزایی که با استفاده از کشت و کیت‌های تجاری مورد تایید قرار گرفته بود، با استفاده از روش Reed and Muench مشخص شد. تیتر ویروس 106 EID50 ...
[ 12 ] - Molecular Detection of Gamma Coronaviruses in Bird Parks of Iran
Gamma Coronaviruses (GCoVs) are distributed worldwide, affecting a wide range of bird species, the beluga whale, and bottlenose dolphins. Because of the limited proofreading capability in the viral encoded polymerase, they emerge genetically diverse. There has been no molecular surveillance data to describe the epidemiology of GCOVs in avian species. The present study was conducted to detect GC...
[ 13 ] - Detection and Isolation of H9N2 Subtype of Avian Influenza Virus in House Sparrows (Passer domesticus) of Ahvaz, Iran
Avian influenza (AI) is an acute infectious disease with worldwide significance causing extensive economic losses in the poultry industry. Avian influenza viruses (AIVs) belong to the family Orthomyxoviridae and categorized in the genus influenza virus A. These viruses have been isolated from more than 100 species of free-living birds. Migratory birds are considered as reservoirs for AIVs and a...
[ 14 ] - Detection of Avian Encephalomyelitis Virus in Broiler Chickens in Iran Using RT-PCR and Histopathological Methods
Avian encephalomyelitis is caused by a Tremovirus and primarily affects chickens. The virus can infect young chicks and cause nervous symptoms. Vaccines are used to control the disease in breeders. Recently, the occurrence of the disease is causing concern in the poultry industry. In the present study, we report a case of avian encephalomyelitis in one broiler farm in Kashan (center of Iran). T...
[ 15 ] - Genetic Analysis of Avian Orthoavulavirus Type I (AOAV-1) Strains Isolated from Broiler Flocks
Background and aim: Newcastle disease (ND) is one of the most serious diseases among many species of birds and causes devastating effects on the poultry industry. This disease is endemic in Iran and ND outbreaks occur unexpectedly and with high mortality and severe clinical signs. The sequence of the F protein cleavage site is that the major virulence determinant of Newcastle disease virus (NDV...
[ 16 ] - Phylogenetic Study and Investigation on the Involvement of the Newcastle Disease Virus in Multicausal Respiratory Diseases of the Broiler Flocks in Qazvin Province, Iran 2014-2015
BACKGROUND: Newcastle disease virus (NDV) is one of the most principal contagious diseases with a significant role in multifactorial respiratory diseases in the poultry industry. OBJECTIVES: This study aims to evaluate and detect NDVs in multicausal respiratory diseases. METHODS: A total of 180 tracheal swabs were collected from 20 ...
[ 17 ] - Characterization of Pigeon Paramyxovirus Type 1 Viruses (PPMV-1) Isolated from Iran
Newcastle disease (ND) is one of the contagious viral diseases in avian species. Recently, several ND outbreaks in pigeon caused by pigeon paramyxovirus serotype-1 (PPMV-1) have been reported in limited numbers from Iran and phylogenetic studies have been conducted on partial sequence of NDV fusion (F) gene. In the present study, ten PPMV-1, named Pigeon_paramyxovirus1_isolate_pigeon/Iran/UT_EG...
[ 18 ] - Serological Survey of Infectious Laryngotracheitis in Broiler Flocks, Iran, 2018
Infectious Laryngotrachitis (ILT) is an acute respiratory disease with high morbidity and low mortality in poultry. ILT is caused by Gallid herpesvirus 1 (GaHV-1), a member of the Iltovirus genus and family Herpesviridae. It resulted in notable economic losses due to decreasing the growth rates, egg production, and increasing the mortality in commercial poultry, especially layer flocks, and usu...
[ 19 ] - Phylogenetic study of the recent outbreak of Avian Influenza H5 subtype in Turkeys, Iran, 2019
Background: Global epizootic distribution of HPAI H5N8 (Clade 2.3.4.4) in poultry and wild birds was demonstrated after 2010. HPAI virus is a major concern not only in birds and poultry industry but also in global human health. Wild migratory birds and their linked to backyard birds are playing a critical role in spreading HPAI and the creation of genetic reassortment. Methods: In this study i...
[ 20 ] - The emergence of Q1 genotype of avian infectious bronchitis virus in Iran, 2019: the first report
Background: Avian infectious bronchitis (IB) is an infectious viral disease of chickens. The effective protection of chickens against many different infectious bronchitis virus (IBV) variants is not achieved unless the circulating genotypes in the region are identified and the cross-protection of the potential of vaccines in use is assessed. Aims:In a monitoring program of IBVs, a new genotype ...
[ 21 ] - Detection and Molecular Characterization of Chicken Astrovirus from Broiler Flocks in Iran: The First Report
Background and Aims: Enteric diseases have had detrimental impacts on commercial poultry through depressing growth rates and caused considerable economic losses to poultry producers. Chicken astrovirus (CAstV) is one of the most common viruses related to enteric diseases in chickens, especially in young chicks. Materials and Methods: Chicken astroviruses were detected by reverse transcriptase ...
[ 22 ] - Serological Monitoring of an H5 Inactivated Vaccine in Layer Farms, Iran, 2018
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 seru...
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