Skip to main content

Advertisement

Table 2 HA titres of amniotic/allantoic fluids (AF) in three consecutive passages of AF or chorioallantoic membranes (CAM) homogenates

From: Chorioallantoic membranes of embryonated chicken eggs as an alternative system for isolation of equine influenza virus

CAM AF
Dilution 10−6 10−7 10−8 10−8 10−8 10−6 10−7 10−8 10−8 10−8
1st passage 128 <4 <4 <4 <4 <4 <4 <4 <4 <4
(n = 3) 128 <4 <4 <4 <4 <4 <4 <4 <4 <4
  256 <4 <4 <4 <4 <4 <4 <4 <4 <4
2nd passage   128 <4 <4 <4 <4 <4 <4 <4 <4
(n = 5)   <4 <4 <4 <4 <4 <4 <4 <4 <4
   256 <4 <4 <4 <4 <4 <4 <4 <4
   128 <4 <4 <4 <4 <4 <4 <4 <4
   128 <4 <4 <4 <4 <4 <4 <4 <4
3rd passage    128 32 256 <4 <4 <4 <4 <4
(n = 5)    64 32 64 <4 <4 <4 <4 <4
    128 64 1024 <4 <4 <4 <4 <4
    128 8 2048 <4 8 <4 <4 <4
    64 64 128 <4 <4 <4 <4 <4