T-cells: The superheroes in the battle against omicron

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'Several studies have shown that T-cells generated by vaccines have kept their ability to fight omicron in this way.'

: “While omicron does appear to be less severe compared to delta, especially in those vaccinated, it does not mean it should be categorized as mild.”

This is consistent with the milder symptoms that omicron causes, which are mainly to do with the nose and throat – sniffles and a dry cough. It’s only when SARS-CoV-2 infects the lungs that severe disease happens, which involves symptoms such as breathing difficulties, and omicron seems to be less able to do that.

An early concern was that omicron might somehow dodge the immune system, and this indeed is the case when it. The spike protein on the surface of the SARS-CoV-2 virus is a key target for antibodies. They latch on to the spike and effectively bung it up, stopping it from interacting with the cells the virus is trying to infect and thereby providing protection.

 

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