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Table 3 HA and infectivity titers of avirulent, thermostable ND-viruses at 56 °C for 0, 30, 60 min

From: Disparate thermostability profiles and HN gene domains of field isolates of Newcastle disease virus from live bird markets and waterfowl in Uganda

Virus Parameter Heat treatment time (minutes.) at 56 °C
0 30 60
NDV133/UG/MU/2011 aHA titer (log2) 26 26 26
bInfectivity titer 108.53 108.35 108.05
NDV173/UG/MU/2011 aHA titer (log2) 26 26 26
bInfectivity titer 108.4 108.25 107.7
NDV177/UG/MU/2011 aHA titer (log2) 26 26 26
bInfectivity titer 107.3 106.3 102.25
NDV178/UG/MU/2011 aHA titer (log2) 26 26 26
bInfectivity titer 107.8 106.45 106.2
I2 thermostable strain aHA titer (log2) 211 210 210
bInfectivity titer 109.8 109.5 109.3
LaSota thermolabile aHA titer (log2) 29 29 29
bInfectivity titer 109.6
  1. aHemagglutination assay (HA) titer presented as arithmetic mean HA log2 titer; and infectivity as log10
  2. b50 % embryonated egg infectious dose (EID50/ml)