Fig. 2From: Disparate thermostability profiles and HN gene domains of field isolates of Newcastle disease virus from live bird markets and waterfowl in UgandaIn vitro HA stability test of indicated thermostable field ND-virus at different time intervals. Incubation at 56 °C revealed loss of titer for isolates after 120 min (a–d). Thermostable I2 (e) and thermolabile LaSota (f) reference strains were included as controls. Values were averages of two independent tests (Mean ± SD, n = 2)Back to article page