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Omicron infection is a poor booster of COVID-19 immunity | Imperial News
By Ryan O'Hare
Being 'fully vaccinated' but not boosted doesn't help against Omicron, study finds
By Corinne Purtill
People who caught Covid in first wave get ‘no immune boost’ from Omicron
By Nicola Davis
Study finds omicron poses less risk than delta for long COVID : Shots - Health News
By Rob Stein
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Omicron less likely to cause long COVID, UK study says
By Jennifer Rigby