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Table 2 Number of chickens affected with pneumonia or peri-bronchitis associated lesions at different time points post inoculation (hpi).

From: Highly pathogenic or low pathogenic avian influenza virus subtype H7N1 infection in chicken lungs: small differences in general acute responses

  Cranial lung (hpi) Caudal lung (hpi)
  4 8 16 24 4 8 16 24
Peri-bronchitis         
LPAI 2 0** 1** 3** 5 2* 4* 5*
HPAI 2 1* 2** 1** 4* 3* 5* 2
Pneumonia         
LPAI 1 0** 2** 5* 2 2* 6 4*
HPAI 1** 0* 3 6 3* 3 6 3
  1. N = 6 if not specified otherwise; *n = 5; **n = 4