S - T-Cell responses remain intact against new COVID-19 variants: New study

Scientists are still uncertain as to how quickly antibody responses against COVID-19 disappear and the level of antibody-driven protection against new coronavirus strains.However, the other component of the adaptive immunity conferred by T cells is found to remain robust against newly emerging strains, according to a new study conducted by Dr. Alessandro Sette and Dr. Shane Crotty at La Jolla Institute of Immunology.The study has demonstrated that the T-cell response had held up well after exposing human T-cells from a wide range of hosts previously infected with Covid-19 to several SARS-CoV-2 variants.The decline in response was at most 30% compared to that cell’s response to the SARS-CoV-2 wild type. In some cases, such as against the South Africa variant, T-cell response was nearly equal to that produced against the original strain, the researchers have found.As T cells are not designed to prevent the infection and only work to eliminate the

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T-Cell responses remain intact against new COVID-19 variants: New study