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. 2004 Jan 12;32(1):211–222. doi: 10.1093/nar/gkh177

Table 3. Post-mortem data of SPF chickens infected with wild-type and mutant IBDV.

Virus Bursa/body weight ratioa × 1000 HBLSb
  7 d.p.i. 14 d.p.i. 21 d.p.i. 7 d.p.i. 14 d..p.i 21 d.p.i.
Mock 3.9 (1.5) 6.7 (2.1) 6.2 (1.4) 0.0 (0.0) 0.0 (0.0) 0.0 (0.0)
D6948 1.0 (0.3) 1.1 (0.2) 0.9 (0.2) 5.0 (0.0) 4.8 (0.4) 4.6 (0.5)
srD6948-DACB 1.5 (1.0) 1.0 (0.2) 0.9 (0.2) 5.0 (0.0) 5,0 (0,0) 4,4 (0,5)
srD6948-1R2R 1.7 (0.4) 1.2 (0.3) 1.1 (0.2) 5.0 (0.0) 4.8 (0.5) 4.2 (0.4)

aFor each chicken, the ratio between the weight of the bursa of Fabricius and body was determined. All given data are based on five chickens, at the given days post-infection (d.p.i.). SD is given in parentheses.

bHistopathological bursa lesion score (HBLS) was performed on a 0 (healthy) to 5 (completely damaged) scale, see Materials and Methods. All given data are based on five chickens, SD is given in parentheses.