@theyodelingdad @taipan168 @Jeanettemaree68 Interesting. But cellular immunity ain't 100% either: "Cellular immune response diminished in breakthrough cases, particularly in severe group. In multivariate analysis, advanced age & low anti-S1 IgG titer
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@MarionKoopmans Thanks for sharing, I presume this is the study by Lee et al https://t.co/iWaEaMMTLS The T cell data is less convincing but I feel this is mainly due to the more complex method used for assessment of T cells.
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Lee CM, Choe PG, Kang CK, Lee E, Song K-H, Bang JH, Kim E S, Kim HB, Kim NJ, Kim H-R, Kim Y, Lee C-H, Shin H M, Park S-W, Park WB and Oh M-d (2023) Low humoral and cellular immune responses early after breakthrough infection may contribute to severe https: