• FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster. The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website. By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
  • We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.

Virus Evol . SARS-CoV-2 variant replacement constrains vaccine-specific viral diversification

tetano

Editor, Senior Moderator
Virus Evol


. 2024 Sep 2;10(1):veae071.
doi: 10.1093/ve/veae071. eCollection 2024. SARS-CoV-2 variant replacement constrains vaccine-specific viral diversification

Bethany L Dearlove[SUP] 1 2 [/SUP], Anthony C Fries[SUP] 3 [/SUP], Nusrat J Epsi[SUP] 2 4 [/SUP], Stephanie A Richard[SUP] 2 4 [/SUP], Anuradha Ganesan[SUP] 2 4 5 [/SUP], Nikhil Huprikar[SUP] 5 [/SUP], David A Lindholm[SUP] 6 7 [/SUP], Katrin Mende[SUP] 2 4 7 [/SUP], Rhonda E Colombo[SUP] 2 4 6 8 [/SUP], Christopher Colombo[SUP] 8 [/SUP], Hongjun Bai[SUP] 1 2 [/SUP], Derek T Larson[SUP] 9 [/SUP], Evan C Ewers[SUP] 9 [/SUP], Tahaniyat Lalani[SUP] 2 4 10 [/SUP], Alfred G Smith[SUP] 10 [/SUP], Catherine M Berjohn[SUP] 4 6 11 [/SUP], Ryan C Maves[SUP] 12 [/SUP], Milissa U Jones[SUP] 13 [/SUP], David Saunders[SUP] 6 [/SUP], Carlos J Maldonado[SUP] 14 [/SUP], Rupal M Mody[SUP] 15 [/SUP], Samantha E Bazan[SUP] 16 [/SUP], David R Tribble[SUP] 4 [/SUP], Timothy Burgess[SUP] 4 [/SUP], Mark P Simons[SUP] 4 [/SUP], Brian K Agan[SUP] 2 4 [/SUP], Simon D Pollett[SUP] 2 4 [/SUP], Morgane Rolland[SUP] 1 2 [/SUP]



Affiliations
Abstract

Coronavirus disease 2019 (COVID-19) vaccine breakthrough infections have been important for all circulating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant periods, but the contribution of vaccine-specific SARS-CoV-2 viral diversification to vaccine failure remains unclear. This study analyzed 595 SARS-CoV-2 sequences collected from the Military Health System beneficiaries between December 2020 and April 2022 to investigate the impact of vaccination on viral diversity. By comparing sequences based on the vaccination status of the participant, we found limited evidence indicating that vaccination was associated with increased viral diversity in the SARS-CoV-2 spike, and we show little to no evidence of a substantial sieve effect within major variants; rather, we show that rapid variant replacement constrained intragenotype COVID-19 vaccine strain immune escape. These data suggest that, during past and perhaps future periods of rapid SARS-CoV-2 variant replacement, vaccine-mediated effects were subsumed with other drivers of viral diversity due to the massive scale of infections and vaccinations that occurred in a short time frame. However, our results also highlight some limitations of using sieve analysis methods outside of placebo-controlled clinical trials.

Keywords: SARS-CoV-2; sieve analysis; vaccine breakthrough; variants.

 
Back
Top Bottom