A team of scientists at the University of Oxford released promising results showing their COVID-19 vaccine appears safe in an early-stage study — welcome news for one of the most advanced vaccine programs in the world. The Phase 1/2 results, published Monday in the scientific journal The Lancet, also
A team of scientists at the University of Oxford released promising results showing their COVID-19 vaccine appears safe in an early-stage study — welcome news for one of the most advanced vaccine programs in the world.
Nevertheless, researchers were encouraged to see in this Phase 1/2 study that the Oxford vaccine appeared to activate several parts of the immune system. The vaccine was safe, with no serious adverse effects, although some people reported side effects like fatigue and headache. Instead, it is designed to trigger an immune system response which, once primed, should be ready to attack the novel coronavirus if a person were to be exposed.
According to The Lancet study, the Oxford scientists saw that their vaccine seemed to generate so-called “killer” T-cells, also called cytotoxic T cells because they destroy cells that have been hijacked by viral invaders. There’s another type of T-cell, called helper T-cells, that also may play a role in COVID-19 immunity.
Story continuesWhen it comes to this new virus, scientists are still working to understand exactly what parts of our immune system are likely to protect us long term.
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