Specificity and Breadth of the Neutralizing Antibody Response to a Live-Attenuated Tetravalent Dengue Vaccine.

DeMaso, Christina R; Karwal, Lovkesh; Zahralban-Steele, Melissa; Dominguez, David; Springer, Zhang-Li; Kaiser, Maima; Palani, Sunil; Rindfleisch, Tim et al. · J Infect Dis · 2022

case_series · Level IV

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Abstract

An effective dengue vaccine should ideally induce broadly neutralizing antibody (nAb) responses against all 4 dengue virus (DENV) serotypes. We characterized the specificity and breadth of the nAb response to TAK-003, a live-attenuated tetravalent dengue vaccine, in serum samples from phase 2 and 3 clinical trials. Microneutralization tests using postvaccination serum showed comparable neutralization against diverse DENV-1-4 genotypes. Reporter virus particle neutralization assays after depletion of anti-DENV-2 nAbs demonstrated that the nAb response to DENV-1, -3, and -4 comprises both type-specific (TS) and cross-reactive (CR) nAbs. Therefore, TAK-003 induces broad tetravalent TS and CR nAb responses.

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