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mRNA Booster Vaccines Elicit Strong Protection Against SARS-CoV-2 Omicron Variant in Cancer Patients
Cong Zeng; John P. Evans; Karthik Chakravarthy; Panke Qu; Sarah Reisinger; No joon Song; Mark Rubinstein; Peter G Shields; Zihai Li; Shan-Lu Liu.
Afiliação
  • Cong Zeng; OSU
  • John P. Evans; OSU
  • Karthik Chakravarthy; OSU
  • Panke Qu; OSU
  • Sarah Reisinger; OSUMC
  • No joon Song; OSUMC
  • Mark Rubinstein; OSUMC
  • Peter G Shields; OSUMC
  • Zihai Li; OSUMC
  • Shan-Lu Liu; The Ohio State University
Preprint em Inglês | medRxiv | ID: ppmedrxiv-21268398
ABSTRACT
Following its emergence in late November of 2020, the SARS-CoV-2 Omicron (B.1.1.529) variant has caused major global public health concerns. We recently demonstrated that in healthy adults the Omicron variant exhibits strong resistance to immunity induced by two doses of the mRNA vaccines, but a booster mRNA vaccine dose can provide strong protection against Omicron. However, it is currently unknown how well these mRNA vaccine boosters protect immunocompromised groups, including cancer patients, from the Omicron variant. Here we show that (1) neutralizing antibody (nAb) titers against the Delta and Omicron variants in cancer patients after two-dose mRNA vaccines are 4.2-fold and 21.3-fold lower, respectively, compared to the ancestral D614G, and (2) nAb titers against the Delta and Omicron variants in boosted cancer patients are 3.6-fold and 5.1-fold lower, respectively, compared to D614G. Our findings highlight the effectiveness and need for booster vaccination strategies in immunocompromised groups including cancer patients to protect from the Omicron variant.
Licença
cc_by_nc_nd
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Experimental_studies / Rct Idioma: Inglês Ano de publicação: 2021 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Experimental_studies / Rct Idioma: Inglês Ano de publicação: 2021 Tipo de documento: Preprint
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