Cited by 673SARS-CoV-2 and COVID-19 ResearchCOVID-19 Clinical Research StudiesImmune responses and vaccinations

Antibody Persistence through 6 Months after the Second Dose of mRNA-1273 Vaccine for Covid-19

Open access
Doria-Rose, Nicole, Suthar, Mehul S., Makowski, Mat, O’Connell, Sarah, McDermott, Adrian B., Flach, Britta, Ledgerwood, Julie E., Mascola, John R. +22 more·2021·New England Journal of Medicine

Abstract

Persistence of Antibody after mRNA-1273 Vaccination A total of 33 participants who received both doses of the Moderna mRNA-1273 vaccine against SARS-CoV-2 had blood drawn over a period of 6 months ...

Integrity signals

Registry

Crossref · 10.1056/nejmc2103916

Cites

5 of 5 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 2 cited sources checked · 0 supported · 0 flagged

  • Findingown data
    § Antibody Persistence through 6 Months after the Second Dose of mRNA-1273 Vaccine for Covid-19

    Using a power-law model, the estimated half-life of binding antibodies after day 43 across all participants was 109 days (95% CI, 92 to 136) at day 119.

    “and 109 days (95% CI, 92 to 136) calculated with the use of a power-law model (at day 119)”
    Quote in the paperSubstantial claim
    • The authors state this as an assumption: The power-law model assumes that antibody decay rates decrease over time.
  • Findingown data
    § Antibody Persistence through 6 Months after the Second Dose of mRNA-1273 Vaccine for Covid-19

    For live-virus neutralization, the estimated neutralizing antibody half-life was 182 days (95% CI, 153 to 254) under the power-law model.

    “and 66 days (95% CI, 59 to 72) and 182 days (95% CI, 153 to 254) for live-virus neutralization.”
    Quote in the paperSubstantial claim
    • The authors state this as an assumption: The power-law model assumes that antibody decay rates decrease over time.
  • Findingown data
    § Antibody Persistence through 6 Months after the Second Dose of mRNA-1273 Vaccine for Covid-19

    Using an exponential decay model, the estimated half-life of binding antibodies after day 43 across all participants was 52 days (95% CI, 46 to 58).

    “The estimated half-life of binding antibodies after day 43 for all the participants was 52 days (95% CI, 46 to 58) calculated with the use of an exponential decay model”
    Quote in the paperSubstantial claim
    • The authors state this as an assumption: The exponential decay model assumes a constant antibody decay rate over time.
  • Findingown data
    § Antibody Persistence through 6 Months after the Second Dose of mRNA-1273 Vaccine for Covid-19

    For pseudovirus neutralization, the estimated neutralizing antibody half-life was 69 days (95% CI, 61 to 76) under the exponential model.

    “The neutralizing antibody half-life estimates in the two models were 69 days (95% CI, 61 to 76) and 173 days (95% CI, 144 to 225) for pseudovirus neutralization”
    Quote in the paperSubstantial claim
    • The authors state this as an assumption: The exponential decay model assumes a constant antibody decay rate over time.
  • Findingown data
    § Antibody Persistence through 6 Months after the Second Dose of mRNA-1273 Vaccine for Covid-19

    In participants aged 18 to 55, the pseudovirus neutralization ID50 GMT at day 209 was 80 (95% CI, 40 to 135).

    “with 50% inhibitory dilution (ID50) GMTs of 80 (95% CI, 40 to 135), 57 (95% CI, 30 to 106), and 59 (95% CI, 29 to 121), respectively.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. 2
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation
    § Antibody Persistence through 6 Months after the Second Dose of mRNA-1273 Vaccine for Covid-19

    A phase 3 trial of the Moderna mRNA-1273 vaccine reported 94% efficacy against Covid-19 in interim findings.

    “Interim results from a phase 3 trial of the Moderna mRNA-1273 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine indicated 94% efficacy in preventing coronavirus disease 2019 (Covid-19).1”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [1] Baden LR, El Sahly HM, Essink B, et al. Efficacy and safety of the mRNA-1273 SARS-CoV-2 vaccine. N Engl J Med 2021; 384: 403- 416. 33378609 PMC7787219 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationcitation
    § Antibody Persistence through 6 Months after the Second Dose of mRNA-1273 Vaccine for Covid-19

    The present findings align with previously published observations of convalescent Covid-19 patients followed for up to 8 months after symptom onset.

    “These results are consistent with published observations of convalescent patients with Covid-19 through 8 months after symptom onset.5”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [5] Dan JM, Mateus J, Kato Y, et al. Immunological memory to SARS-CoV-2 assessed for up to 8 months after infection. Science 2021; 371(6529): eabf4063- eabf4063. 33408181 PMC7919858 source

      Not checked in the free run.

2 of 2
  • The paper relies on this without support.

    The durability of protection from the mRNA-1273 vaccine is currently unknown.

    “The durability of protection is currently unknown.”
  • The authors state this as an assumption.

    The exponential decay model assumes a constant antibody decay rate over time.

    “which assumes a steady decay rate over time”
  • The authors state this as an assumption.

    The power-law model assumes that antibody decay rates decrease over time.

    “which assumes that decay rates decrease over time”
3 of 3

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Circulating antibodies persist for at least 6 months postvaccination, although there is some decay from peak levels.

    “Current evidence suggests that circulating antibodies persist for at least 6 months postvaccination (7), although there is some decay from the peak levels achieved after the second dose.”
  • Vaccination with mRNA-1273 elicited antibodies to SARS-CoV-2 WA1 in subjects aged 56 to 70 and 71 and older that are as potent and durable as those elicited in adults aged 18 to 55, with a slight decrease in potency for the oldest subjects in live-virus neutralization.

    “We previously showed that vaccination with mRNA-1273 elicited antibodies to SARS-CoV-2 WA1 in subjects aged 56 to 70 and 71 and older that are as potent (15) and durable (13) as those elicited in adults aged 18 to 55, with a slight decrease in potency for the oldest subjects in live-virus neutralization (13).”
  • In the pseudovirus neutralization assay, 25% of sera neutralized WA1 after one dose (day 29).

    “In the pseudovirus neutralization assay, consistent with our previous study (13), 25% of sera neutralized WA1 after one dose (day 29).”
  • In clinical trials, two doses of mRNA-1273 elicited durable antibody responses over a period of 6 months; although antibody titres declined slightly, high neutralizing ability was retained across all age groups.

    “In clinical trials, two doses of mRNA-1273 also elicited durable antibody responses over a period of 6 months. Although antibody titres declined slightly over the duration of the study, high neutralizing ability was retained across all age groups205.”
  • Neutralizing antibody responses raised by mRNA COVID-19 vaccines decay with a half-life of 69-173 days.

    “Several reports have measured the decay of neutralizing antibody responses raised by mRNA COVID-19 vaccines with a half-life of 69-173 days (Doria-Rose et al., 2021; Levin et al., 2021).”

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Authors
Doria-Rose, N., Suthar, M. S., Makowski, M., O’Connell, S., McDermott, A. B., Flach, B., Ledgerwood, J. E., Mascola, J. R., Graham, B. S., Lin, B. C., O’Dell, S., Schmidt, S. D., Widge, A. T., Edara, V.-V., Anderson, E. J., Lai, L., Floyd, K., Rouphael, N. G., Zarnitsyna, V., Roberts, P. C., Makhene, M., Buchanan, W., Luke, C. J., Beigel, J. H., Jackson, L. A., Neuzil, K. M., Bennett, H., Leav, B., Albert, J., & Kunwar, P.
Affiliations
  • National Institute of Allergy and Infectious Diseases (NIAID), Bethesda, MD
  • Emory University (US)
  • Emmes (United States) (US)
  • National Institutes of Health (US)
  • NIAID, Bethesda, MD
  • Kaiser Permanente Washington Health Research Institute (US)
  • University of Maryland, Baltimore (US)
  • Moderna Therapeutics (United States) (US)
Corresponding author
Suthar, Mehul S.
Venue
New England Journal of Medicine
Published
2021-06-10
Volume
384
Issue
23
Pages
2259-2261
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W3142193311
Cited by
673
References
6
Citations by year
2026: 17 · 2025: 25 · 2024: 40 · 2023: 104 · 2022: 287 · 2021: 199
FWCI
49.96
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Covid-Catalyst-I3 Funds from the Woodruff Health Sciences Center and Emory School of Medicine
  • North Carolina Policy Collaboratory at the University of North Carolina at Chapel Hill
  • North Carolina Coronavirus Relief Fund
  • Coalition for Epidemic Preparedness Innovations
  • Georgia Research Alliance
  • National Institute of Allergy and Infectious Diseases (AI149644, HHSN272201500002C, P51 OD011132, UM1AI148373, UM1AI148576, UM1AI148684, UM1Al148684-01S1)
  • National Center for Advancing Translational Sciences (UL1 TR002243)
  • Dolly Parton COVID-19 Research Fund
  • Emory Executive Vice President for Health Affairs Synergy Fund award
  • Center for Childhood Infections and Vaccines
  • Children’s Healthcare of Atlanta
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
mRNA-1273 vaccine, SARS-CoV-2, COVID-19 vaccination, antibody persistence, humoral immune response, Moderna vaccine, booster vaccination, SARS-CoV-2 antibodies
MeSH terms
COVID-19, SARS-CoV-2, COVID-19 Vaccines, 2019-nCoV Vaccine mRNA-1273, Adult, Aged, Antibodies, Viral, Half-Life, Humans, Middle Aged, Antibodies, Neutralizing

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