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Table 2 Hemagglutination titers and heat inactivation rate constant (k) of thermostable ND-viruses incubated at 56 °C

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

  Arithmetic mean HA titer (log2) at various time intervals of heat inactivation (minutes) Rate constant (k)
Virus Isolates 0 15 30 45 60 75 90 105 120 (103 K/min−1)
NDV007/UG/MU/2011 5 5 5 5 5 5 4 4 4 2.23
NDV015/UG/MU/2011 6 6 6 6 5 5 4 4 4 4.26
NDV022/UG/MU/2011 8 8 8 8 8 8 8 8 3 4.36
NDV023/UG/MU/2011 7 7 6 5 5 4 4 3 1 12.62
NDV039/UG/MU/2011 8 8 8 8 7 7 6 5 4 5.44
NDV059/UG/MU/2011 8 8 7 7 6 6 5 4 3 7.59
NDV073/UG/MU/2011 5 5 5 5 4 4 3 2 1 11.59
NDV089/UG/MU/2011 3 3 3 3 3 3 2 1 1 9.45
NDV092/UG/MU/2011 5 5 4 3 2 2 2 1 1 14.51
NDV097/UG/MU/2011 8 4 4 4 4 4 4 4 4 3.08
NDV098/UG/MU/2011 5 4 4 3 2 2 2 2 2 8.38
NDV099/UG/MU/2011 5 5 4 4 4 3 3 3 1 9.82
NDV111/UG/MU/2011 6 5 4 4 3 2 2 2 2 10.25
NDV115/UG/MU/2011 6 6 6 6 6 6 6 6 4 1.80
NDV118/UG/MU/2011 7 7 7 7 7 7 7 7 7 0.00b
NDV119/UG/MU/2011 5 5 5 5 4 4 4 3 2 6.52
NDV133/UG/MU/2011 6 6 6 6 6 6 6 6 6 0.00b
NDV152/UG/MU/2011 6 6 6 6 6 6 6 6 6 0.00b
NDV158/UG/MU/2011 4 3 3 3 3 3 3 2 1 7.51
NDV173/UG/MU/2011 6 6 6 6 6 6 6 6 5 0.81b
NDV177/UG/MU/2011 6 6 6 6 6 6 6 5 5 1.22b
NDV178/UG/MU/2011 6 6 6 6 6 6 6 6 4 0.81b
NDV180/UG/MU/2011 6 6 6 5 5 4 4 3 3 6.54
I 2 vaccine 11 10 10 10 10 10 10 9 9 1.24a
LaSota vaccine 8 ≥1 245.97a
  1. aReference vaccines
  2. bMost thermostable ND-virus, below I2 reference thermostable strain