Vaccination

China approves first domestic mRNA vaccine for COVID-19

China has approved its first locally developed messenger RNA (mRNA) vaccine against COVID-19, its manufacturer said Wednesday, months after the relaxation of strict COVID-zero regulations sparked a surge in cases.

Immunology

How regulatory T cells halt aberrant, self-reactive T cells

New research findings show in detail how self-reactive T cells—white blood cells that mistakenly attack healthy instead of infected cells, thereby causing an autoimmune or an inflammatory response—are held in check by ...

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