Neutralizing Antibodies After Infection with Dengue 1 Virus
Overview
Authors
Affiliations
Severity of disease is markedly increased when infection with dengue virus type 2 (DENV-2) follows infection with DENV-1 at an interval of 20 years. Studies have shown that heterologous neutralizing antibody titers are inversely correlated with severity of a second infection. If this mechanism controlled disease severity in Cuba, heterotypic antibody titers should have declined over time. To determine whether phenotypic changes in dengue antibodies occur over time, we analyzed serum samples collected 4-8 and 20-22 years after DENV-1 infection. We found a significant increase in mean titer of homologous DENV-1 neutralizing antibodies and a significant decrease in heterologous antibodies to 1 of 2 genotypes of DENV-2 virus (the American genotype). Asian DENV-2 viruses were not neutralized during either interval; however, the American genotype underwent phenotypic changes in heterotypic viral neutralizing antibodies in the predicted direction. This finding may be related to the time-dependent changes in severity of disease found with secondary dengue infection.
Yadav A, Chowdhary R, Siddiqui A, Malhotra A, Kanwar J, Kumar A Viruses. 2025; 17(2).
PMID: 40006899 PMC: 11861835. DOI: 10.3390/v17020144.
Fatal dengue virus infection in an unvaccinated traveler.
Steinke J, Di Cristanziano V, Naendrup J, Cadar D, Gabriel M, Grosser R Eur J Clin Microbiol Infect Dis. 2024; 44(3):747-752.
PMID: 39731618 PMC: 11880070. DOI: 10.1007/s10096-024-05021-4.
Predicting the infecting dengue serotype from antibody titre data using machine learning.
Cracknell Daniels B, Buddhari D, Hunsawong T, Iamsirithaworn S, Farmer A, Cummings D PLoS Comput Biol. 2024; 20(12):e1012188.
PMID: 39715263 PMC: 11706371. DOI: 10.1371/journal.pcbi.1012188.
Mice, myeloid cells, and dengue: a new model for unraveling vascular leakage mysteries.
Kurosu T, Sakai Y, Ami Y, Shimojima M, Yoshikawa T, Fukushi S Front Microbiol. 2024; 15:1367672.
PMID: 38550855 PMC: 10972876. DOI: 10.3389/fmicb.2024.1367672.
Salem G, Galula J, Wu S, Liu J, Chen Y, Wang W Commun Biol. 2024; 7(1):15.
PMID: 38267569 PMC: 10808242. DOI: 10.1038/s42003-023-05661-w.