References

Abrar, A., 2007. Sero-prevalence study of infectious bursal disease in non-vaccinated backyard chickens in selected areas of east shoa zone. DVM Thesis, Addis Ababa University, Ethiopia.

Alcorn, M.J., 2002. How to Carry out Field Investigation. In: Poultry Disease, Jornan, F., M. Pattison, D. Alexander and T. Faragher (Eds.). 5th Edn., W.B. Sounders Company, USA., pp: 13-42.

Animal Health Australia, 2009. Disease Strategy: Infectious Bursal Disease Caused by very Virulent IBD Virus or Exotic Antigenic Variant Strains of IBD Virus (Version 3.0). Australian Veterinary Emergency Plan (AUSVETPLAN). 3rd Edn., Primary Industries Ministerial Council, Canberra, ACT Australia.

Biswas, P.K., H. Barua, G.M.N. Uddin, D. Biswas, A. Ahad and N.C. Debnath, 2009. Serosurvey of five viruses in chickens on smallholdings in Bangladesh. Prev. Vet. Med., 88: 67-71.
CrossRef  |  PubMed  |  Direct Link  |  

Cosgrove, A.S., 1962. An apparently new disease of chickens-avian nephrosis. Avian Dis., 6: 385-389.
Direct Link  |  

Emikpe, B.O., D.O. Oluwayelu, O.A. Fagbohun, O.A. Oladele and O.G. Ohore, 2007. Seroprevalence of infectious bursal disease in flocks of indigenous Nigerian ducks (Anas platyrhynchos). J. Anim. Vet. Adv., 6: 64-67.
CrossRef  |  Direct Link  |  

Hailu, M.S., B. Tilahun and T. Negash, 2010. Newcastle disease and infectious bursal diseases are threat to village chicken production in two districts of Amahara National Regional State, Northwest Ethiopia. J. Life Sci., 4: 62-72.
Direct Link  |  

Hernandez-Divers, S.M., P. Villegas, F. Prieto, J.C. Unda and N. Stedman et al., 2006. A survey of selected avian pathogens of backyard poultry in Northwestern Ecuador. J. Avian Med. Surg., 20: 147-158.

Ibrahim, U.T. and S.N. Tany, 2001. Prevalence of antibodies to IBDV in village chickens in Sahel zone of Nigeria. Bull. Anim. Prod. Afr., 49: 150-152.

Karunakaran, K., M. Thanappapilldi and N. Raghavan, 1993. Sero-prevalence of Infectious Bursal Disease (IBD) in parts of Tamil Nadu, India. Comp. Immunol. Microbiol. Infect. Dis., 16: 241-244.
CrossRef  |  

Lukert, P.D. and Y.M. Saif, 1997. Infectious Bursal Disease. In: Diseases of Poultry, 10th Edn., Calnek, B.W., H.J. Barnes, C.W. Beard, L.R. McDougald and Y.M. Saif (Eds.). Iowa State University Press, Ames., pp: 721-738.

Mazengia, H., S.B. Tilahun and T. Negash, 2009. Incidence of infectious bursal disease in village chickens in two districts of Amhara region, Northwest Ethiopia. Livestock Res. Rural Dev., Vol. 21.

Miller, H.S., 1995. The emergence of the Delaware strain of IBD and its control in the U.S. Proceedings of the International Poultry Symposium Summit on IBD, (IBD`95), Athens, GA., pp: 99-101.

Mor, S.K., G. Narang, N. Jindal, N.K. Mahajan, P.C. Sharma and N.K. Raka, 2010. Epidemiological studies on infectious bursal disease in broilers chicken in Haryana, India. Int. J. Poult. Sci., 9: 395-400.
CrossRef  |  Direct Link  |  

Murphy, F.A., E.P.J. Gibbs, M.C. Horzinek and M.J. Studdert, 1999. Veterinary Virology. 3rd Edn., California, Academic press, USA., pp: 405-409.

Mushi, E.Z., M.G. Binta, R.G. Chabo and R.T. Ndebele, 1999. Seroprevalence of infectious bursal disease in non-vaccinated indigenous and exotic chickens on selected farms around Gaborone, Botswana. Onderstepoort J. Vet. Res., 66: 135-137.
PubMed  |  

Ndanyi, S.N., F.M. Njue, P.N. Mukendi and A.M. Bojesen, 2004. Seroprevalence of IBD and Impacts of its vaccination on village poultry in Taita Taveta District of Kenya. M.Sc. Thesis, The Royal Veterinary and Agricultural University, Denmark.

OIE, 2004. Infectious bursal disease (Gumboro disease): Manual of diagnostic test and vaccine for terrestrial animals. OIE. http://www.oie.int/eng/normes/mmanual/A_00102.htm#top.

Sil, G.C., P.M. Das, M.R. Islam and M.M. Rahman, 2002. Management and disease problems of cockerels in some farms of Mymensingh, Bangladesh. Int. J. Poult. Sci., 1: 102-105.
CrossRef  |  Direct Link  |  

Singh, C.P. and R.J. Dhawedkar, 1992. Prevalence of subclinical bursal disease and its significance in India. Trop. Anim. Helath. Prod., 24: 204-206.
CrossRef  |  Direct Link  |  

Solomon, W. and W. Abebe, 2007. Infectious Bursal Disease (Gumboro disease) case report of Andasa poultry farm Amahara region. Ethiop. Vet., J., 11: 150-154.

Van den Berg, T.P., 2000. Acute infectious bursal disease in poultry: A review. Avian Pathol., 29: 175-194.
CrossRef  |  Direct Link  |  

Zeleke, A., E. Gelaye, T. Sori, G. Ayelet, A. Sirak and B. Zekarias, 2005. Investigation on infectious bursal disease outbreak in Debre Zeit, Ethiopia. Int. J. Poult. Sci., 4: 504-506.
CrossRef  |  Direct Link  |  

Zeleke, A., M. Yami, F. Kebede, N. Melese and B. Senait et al., 2003. Gumboroo: An emerging disease threat to poultry farms in Debre Zeit. Proceedings of the 17th Annual Conference of Ethiopian Veterinary Association, Addis Ababa, Ethiopia.