Cytomegalovirus (CMV) seropositivity decreases B cell responses to the influenza vaccine

Daniela Frasca, Alain Diaz, Maria Romero, Ana Marie Landin, Bonnie B. Blomberg

Research output: Contribution to journalArticlepeer-review

67 Scopus citations


Cytomegalovirus (CMV)-seropositivity has been shown to have a negative effect on influenza vaccine-specific antibody responses. In this paper, we confirm and extend these results showing for the first time, a negative association between CMV-seropositivity and B cell predictive biomarkers of optimal vaccine responses. These biomarkers are switched memory B cells and AID in CpG-stimulated B cell cultures measured before vaccination which positively correlate with the serum response to the influenza vaccine. We also found that CMV-seropositivity is associated with increased levels of B cell-intrinsic inflammation and these both correlate with lower B cell function. Finally, CMV-seropositivity is associated with decreased percentages of individuals responding to the vaccine in both young and elderly individuals.

Original languageEnglish (US)
Pages (from-to)1433-1439
Number of pages7
Issue number12
StatePublished - Mar 17 2015


  • Aging
  • B cell biomarkers
  • CMV
  • Influenza vaccine

ASJC Scopus subject areas

  • Molecular Medicine
  • Immunology and Microbiology(all)
  • veterinary(all)
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases


Dive into the research topics of 'Cytomegalovirus (CMV) seropositivity decreases B cell responses to the influenza vaccine'. Together they form a unique fingerprint.

Cite this