Characterization of Recombinant Dengue-2 Virus Derived from a Single Nucleotide Substitution in the 5′ Noncoding Region

Table 1

Neurovirulence Assay of DEN-2 mutants in new born mice.

Viruses	Neurovirulence
	% mortality (𝑛)	Average survival time (AST) (days ± SD)
D2-16681	100 (32)	4.7 ± 0.32
D2-14.5^M	32.5 (32)	16.9 ± 0.67
D2-15.5^M	31 (32)	8.6 ± 0.61
D2-57.5^M	31 (36)	17.9 ± 0.68