| further evidence for very virulent infectious bursal disease virus in vaccinated chickens in nigeria. | reverse transcription polymerase chain reaction (rt-pcr) and partial sequencing of the vp2 hypervariable region was performed on clinical samples from two infectious bursal disease (ibd) outbreaks in plateau state, nigeria. ibd virus rna was detected in all four bursa of fabricius samples. nucleotide sequencing and analysis of the four samples revealed high similarity to previous ibdv sequences from northern and southern nigeria. the deduced amino acid sequences were compared to reference ibdv s ... | 2015 | 26149517 |