NEWYou can now listen to Fox News articles! BA.5, part of the Omicron family, is the latest coronavirus variant to cause widespread waves of infection globally.According to the World Health Organization’s most recent report, it was behind 52% of cases sequenced in late June, up from 37% in one week. In the United States, it is estimated to be causing around 65% of infections.Rising Case NumbersBA.5 is not new. First identified in January, it has been tracked by the WHO since April.It is a sister variant of the Omicron strain that has been dominant worldwide since the end of 2021, and has already caused spikes in case rates – even with reduced testing – in countries including South Africa, where it was first found, as well as the United Kingdom, parts of Europe, and Australia.WITH OMICRON BA.5 SUBVARIANT SPREADING, WHITE HOUSE COMMITS TO ENSURING ACCESS TO BOOSTERS, TESTINGCoronavirus cases worldwide have now been rising for four weeks in a row, WHO data showed.Why It Is SpreadingLike its closely related sibling, BA.4, BA.5 is particularly good at evading the immune protection afforded either by vaccination or prior infection.For this reason, “BA.5 has a growth advantage over the other sublineages of Omicron

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