Fig. 1

Neutralizing antibodies titers to DENV-2 genotypes (Cosmopolitan, Asian I and Asian/American) during primary DENV inoculation. Neutralizing antibody titers in marmosets inoculated with: a DENV-2 genotype Cosmopolitan, b DENV-2 genotype Asian I, c DENV-2 genotype Asian/American, d DENV-1 genotype I, e DENV-1 genotype II. Double asterisks (**) indicate that there were statistically significant differences (p < 0.05) in the titers of neutralizing antibodies between genotypes. Student’s test analysis was used to determine the differences in mean titers of neutralizing antibody between CM vs AI, CM vs AA, and AI vs AA. CM indicates Cosmopolitan genotype. A1 indicates Asian I genotype. AA indicates Asian/American genotype