| Literature DB >> 25977264 |
Bindiya Bagga1, Jeffrey E Cehelsky2, Akshay Vaishnaw2, Tom Wilkinson3, Rachel Meyers2, Lisa M Harrison4, Philippa L Roddam1, Edward E Walsh5, John P DeVincenzo6.
Abstract
We studied preexisting respiratory syncytial virus (RSV)-specific serum and nasal antibodies and their correlation with infectivity, viral dynamics, and disease severity in a human experimental infection model. Higher preinoculation serum neutralizing antibody titers and nasal immunoglobulin (Ig) A predicted lower infectivity and lower measures of viral replication. However, once individuals were infected, no significant protective effect of preexisting antibodies was seen. Lack of correlation between serum and mucosal antibodies was observed, implying that they are independent co-correlates of protection against RSV infection. We suggest that protection from RSV infection is a function of a complex interplay between mucosal and serum humoral immune responses.Entities:
Keywords: correlates of protection; mucosal antibody responses; respiratory syncytial virus; serum antibody responses; vaccines
Mesh:
Substances:
Year: 2015 PMID: 25977264 DOI: 10.1093/infdis/jiv281
Source DB: PubMed Journal: J Infect Dis ISSN: 0022-1899 Impact factor: 5.226