The kinetics of RhCMV-specific T cell responses and RhCMV viral load in breast milk.
figureposted on 2018-10-24, 18:10 authored by Amitinder Kaur, Hannah L. Itell, E. Peek Ehlinger, Valerie Varner, Soren Gantt, Sallie R. Permar
Maternal RhCMV-specific immunodominant T cell responses (IE1, IE2, or pp65) in breast milk were measured by cultured IFNγ ELISpot (grey line), using the immunodominant peptide pool for each dam (monkeys 337 and 222: pp65; monkeys 196 and 187: IE-1; monkey 205: IE-2). Breast milk virus load (green line) was measured by qPCR, and the median and range of the positive qPCR replicates are indicated when 2 or more replicates were positive. T cell responses were considered positive if they were greater than twice the background and 50 SFU/106 cells (dotted line).
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RhCMV DNA levelsurineSerum IgG antibody levelssalivapostnatal mother-to-child RhCMV transmissionPCRblood RhCMV-specific T cell responsesELISAHCMV mucosal acquisitionpostpartum RhCMV-seropositive mothersRhCMV-specific T cell responsesbreast milkpostnatal HCMV transmission5 RhCMV-seropositive damspostnatal rhesus cytomegalovirusinfant rhesus monkeys Background Human infantsinterferon gamma ELISpot assaysinfant RhCMV transmission