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The Omicron variant has reached an estimated prevalence of 100% in Italy. It can be read in the extended weekly report of the Istituto Superiore di Sanità. The sub-variant BA.5 is largely predominant, with a national prevalence of 90.8% (75.5% in the previous survey).
The prevalence of BA.5 is high in all regions, ranging from 76.5 to 100%. The report also refers to “a significant increase in the number of BA.5 sub-lineages circulating in our country. BA.2 (1.4% against 10.3% in the previous survey) and BA.4 ( 6.7% versus 13.2%) ”.
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