Table 1. The reassortant influenza H7N9 ca virus is ca and ts in CEF cells.

Virus	Mean titer±SE (log10 CCID50/ml)			ca a phenotype	ts b phenotype
	25°C	33°C	39°C
Ah01/H7N9	2.8±0.01	7.0±0.08	6.8±0.03	-	-
Ah01/AA ca	5.9±0.02	6.8±0.06	2.5±0.01	+	+

^a ca = difference between the mean CCID₅₀ at 33°C and 25°C ≥100-fold.

^b ts = difference between the mean CCID₅₀ at 33°C and 39°C ≥100-fold.