[1] Dept Sci & Technol, Balik Scientist Program, Taguig, Philippines
[2] Kuwait Univ, Coll Publ Hlth, Hlth Sci Ctr, Dept Epidemiol & Biostat, Kuwait, Kuwait
[3] ARS, Exot & Emerging Avian Viral Dis Res Unit, Southeast Poultry Res Lab, US Natl Poultry Res Ctr,USDA, Athens, GA 30605 USA
[4] Natl Sci Ctr, Inst Expt & Clin Vet Med, Kharkiv, Ukraine