El-Sayed M. Abdelwhab, Jutta Veits and Thomas C. Mettenleiter

Avian Influenza H5N1 in Egypt: What we Know and What we have to Know?
...ced endemic outbreaks of avian influenza viruses (AIV) of subtype H5N1 in poultry since 2008. Since then, these viruses continue to evolve. In 2006-2008, outbreaks were reported mostly during the winter season, but in 2009-2012 they occurred year round. H5N1 AIV succeeded in infecting not only domesticated birds but also many other avian species and mammals. Infections of humans were accompanied by mutations in the hemagglutinin (HA) protein which improved the...

Hanqin Shen1,3, Boliang Wu1,2, Guangwei Li1, Feng Chen1, Qingbin Luo1,3, Yimin Chen1, Qingmei Xie1,2,3*

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Mohammed A. Rohaim1*, Rania F. El-Naggar2, Abdulrahman M. Gamal3, Elshaimaa Ismael3, Mohamed M. Hamoud4, Sherif T. Moubarak3, Ashraf M. Metwally1, Manal M. Zaki3, Shimaa A.E. Nasr3, Samah Elsaid3, Mohamed M. Ali3, Hussein A. Hussein1 and Osama K. Zahran3

Email: mohammedvet1986@gmail.com; mohammed_abdelmohsen@cu.edu.eg

...es. Disinfection against avian influenza viruses at the poultry farms would significantly reduce and/or limit the chance for its transmission and outbreaks. Many disinfectants have been evaluated for their inactivation ability, but there is still a need for their evaluation under different conditions and in different ways. In the present study, representative disinfectants from chlorine and non-chlorine oxidizing agents have been evaluated ...

Wesam Hasan Mohamed Mady 1*, Bing Liu2, Dong Huang2, A. Arafa1, M.K. Hassan1, M.M. Aly1, Pucheng Chen2, Yongping Jiang2* and Hualan Chen2

...ify;">The low pathogenic avian influenza viruses (LPAIV) subtype H9N2 are highly prevalent in the Middle East and are causing economic losses in the commercial poultry production sectors. Due to potential of H9N2 infections in human, LPAI H9N2 poses serious public health risk. Therefore, development of new potent and cost-effective influenza vaccines is urgently needed to safeguard poultry and to contain zoonosis. The primary goal of this study was to develop ...

Mahmoud Said1*, Abd El Satar Arafa1, Mohammed A. Rohaim2* and Hussein A. Hussein2

... disease virus (NDV) and avian influenza viruses (AIVs) H5N1 are endemic in Egypt and extensive vaccinations are being applied for chicken flocks, which have maternal derived antibodies (MDA) for these viruses. To understand the interference of maternal derived immunity impact of maternal derived immunity interference in vaccination regimen in poultry, a total of one hundred day old commercial broiler chicks were vaccinated with LaSota. A group of chicks (n=40...
Muhammad Ayaz1,*, Muhammad Athar Abbas2, Pervez3, Noorulain3, Yasir Amin1, Zubair Ali3, Naila Siddique2 and Khalid Naeem2
...tify;">A surveillance of avian influenza viruses in Hazara region of Khyber Pakhtunkhwa Pakistan was carried out from April 2013 through September 2014. Pooled morbid material and fecal samples from 600 different locations across the region were analyzed for isolation. Isolation was carried out on embryonated chicken eggs. Identification of H protein was undertaken through hem agglutination Inhibition (HI) test while N typing was done using reverse transcripta...

Wesam Hasan Mohamed Mady1*, Bing Liu2, Dong Huang2, Abdel Satar Arafa1, Mohamed Khalifa Hassan1, Mona Mehrez Aly1, Pucheng Chen2, Yongping Jiang2* and Hualan Chen2

...ion of highly pathogenic avian influenza virus (HPAIV) strain H5N1 in 2006 in Egypt caused severe economic losses for both commercial and backyard poultry production sectors. Owing to public health risk, effective control of the virus in imperative. DNA vaccination is a promising new approach for the prevention and treatment of many viral diseases because of its ability to induce both humoral and cellular immune responses against antigens encoded by recombinan...

Muhammad Abid1*, Tahir Yaqub2, Arslan Mehboob3 and Muhammad Zubair Shabbir4

...gn: justify;"> H9N2 avian influenza viruses are currently endemic in Pakistan and outbreaks are continuously being reported with high morbidity, drop in egg production and reduced weight gain. Besides economic losses to the poultry industry, these viruses pose a significant threat to public health. Owing to significant involvements of neuraminidase (NA) gene in virus pathobiology by mediating virus entry and release, the present study was conducted to det...

Osama Elshazly1, AbdelSatar Arafa1, Mohammed A. Rohaim2, Ismaeil M. Reda2 and Hussein A. Hussein2*

...onotic highly pathogenic avian influenza virus (HPAIV) H5N1 of clade 2.2.1 has recently diversified into two distinct genetic subclades (2.2.1.1 and 2.2.1.2) in Egypt. This study was conducted as part of routine surveillance activities in Egypt; 5202 cloacal and oropharyngeal swabs were collected from live/dead birds, including commercial and backyard flocks, in five different locations in Egypt between the years of 2015 and 2016. All samples were screened usi...
Amna Kausar1,2, Sana Anwar1, Naila Siddique2, Safia Ahmed1 and Javid Iqbal Dasti1,*
...ermine the prevalence of avian influenza virus (AIV) subtypes (AIV H9, AIV H7 and AIV H5) in non-vaccinated wild and domesticated bird species across Pakistan. During January-December 2013, in total 700 samples were collected from different species of non-vaccinated birds inhabiting diverse ecological zones of Pakistan. Altogether, 507 tissue and swab samples were screened for the presence of viral RNA by reverse transcriptase polymerase chain reaction (RT-PCR...

 Ihsan Ali1#, Asim Aslam1*, Habib-ur-Rehman2, Beenish Zahid3, Ishtiaq Ahmed1

Effect of fish oil on growth performance and immune response in experimentally infected broiler chicken with avian influenza virus H9N2
...broilers chicken against avian influenza virus infection.

...

Ahmed Samy1*, Hala Mohamed Nabil Tolba2, Gamelat Kotb Farag3 and Ahmed Abd El Halim1 

...for NDV and negative for avian influenza virus and infectious bronchitis virus. Seven positive samples were subjected for genotypic characterization based upon partial F gene sequencing. Partial F gene sequencing revealed that all tested isolates harbor a cleavage site with multi basic amino acid 112KRQKR/F117 characteristic of velogenic strains. However, phylogenetic analysis revealed clustering of all tested strains within sub-genotype VIg. Three isolates we...

Amany Adel, Wesam Mady*, Zienab Mosad, Fatema Amer, Asmaa Shaaban, Dalia Said, Marwa Ali Abdel Maged, Abdel-Satar Arafa, Mohamed Kamal Morsi, Mohamed Khalifa Hassan 

... the H9N2 low pathogenic avian influenza virus in 2011, the virus has distributed rapidly and widely in different poultry sectors in Egypt causing severe economic losses and the problematic situation in poultry production especially with a co-infection with other circulating pathogens. In this study, 1026 confirmed positive H9N2 cases by RT-PCR out of 23182 different examined samples of different species and sectors in Egypt, with a prevalence rate 4.4% by the...

Amany Adel, Wesam Mady*, Zienab Mosaad, Fatma Amer, Asmaa Shaaban, Dalia Said, Marwa Ali, Abdel-Satar Arafa, Mohamed Kamal Morsi and Mohamed Khalifa Hassan  

... the H9N2 low pathogenic avian influenza virus (LPAI) in 2011, the virus has been distributed rapidly and widely in different Egyptian poultry sectors causing severe economic losses and the problematic situation in poultry production especially with a co-infection with other circulating pathogens. In this study, a total of 23182 cloacal and tracheal samples were collected from suspected cases between 2015 and 2016 and submitted to the Reference laboratory o...

Wesam Mady*, Nahed Yehia, Mohammed Hassan Elhussieny, Azhar Gaber Shalaby, Moataz Mohamed El Sayed, Neveen Rabie Bakry, Asmaa Shaaban, Abdel Satar Arafa, Afaf Abdel Baset Mahmoud and Wafaa Mohammed Hassan 

...ion of highly pathogenic avian influenza virus (HPAIV) H5N8 in November 2016 in Egypt, it caused severe economic losses for both the commercial and backyard poultry production sectors. The aim of this work is to study the Situation and molecular characterization of HPAIV (H5N8) in backyard poultry production sector in Egypt. In this study, a total of 7505 samples of tracheal swabs representing 1180 backyard poultry flocks were collected based on the surveillan...
Irfan Irshad1, Asim Aslam1,*, Muhammad Yasin Tipu1, Kamran Ashraf2, Beenish Zahid3 and Abdul Wajid4
... and low-pathogenic H9N2 avian influenza viruses are presently endemic in Pakistan and repeated outbreaks are continuously being reported with high mortality in poultry and non-poultry avian species. In this study, five AAvV-1s have been pathotyped and genetically characterized from vaccinated birds collected between 2013-14. A phylogenetic analysis revealed that all the isolates belonged to sub-genotype VIIi with high similarity of 97.9 to 99.8% with similar ...
Muhammad Furqan Shahid1*, Tahir Yaqub1, Muhammad Yasin Tipu2, Asim Aslam2, Saima Yaqub1, Aziz-ul-Rahman3, Muzaffar Ali1
...ticularly low pathogenic avian influenza virus (LPAIV) H9N2, which can bring exceptional abatement in trade of poultry products in endemic countries such as Pakistan. The current study was conducted to evaluate the infectious and antigenic potential of three different AIV (A/H9N2) variants isolated from commercial, backyard poultry and fancy birds (partridge). Commercial broiler birds were infected experimentally at the dose of 106 EID50 ...

Hamoudi Naoual1, Alloui Nadir2*, Barberis Abdelhak2 and Boudaoud Amine2 

... the first source of the avian influenza virus (AIV) introduction. In 2016, following the first official detection of the H9N2 subtype circulation in broiler flocks in Eastern Algeria, a preliminary descriptive study is conducted to identify and enumerate in wetland areas, migratory bird species, known to carry the AIV. The Anatidae population peaked in January 2017 with a total of 8064 birds. The 6 frequent species observed are: Mallard (Anas platyrhynchos), ...

Veterinary Sciences: Research and Reviews

June

Vol. 6, Iss. 1, Pages 1-57

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