By Pushkala Aripaka and Josephine Mason LONDON (Reuters) – Two vaccine manufacturers said their shots offered protection against Omicron, as UK data suggested it may cause proportionally fewer hospitalisations than the Delta coronavirus variant, supporting conclusions reached in South Africa. Coronavirus infections have soared across much of the world as highly infectious Omicron has spread, triggering new curbs in many countries. World Health Organization officials have said, however, that it is too soon to draw firm conclusions about its virulence. First identified last month in Southern Afr…

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