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Progress in driving COVID-19 numbers down in Wisconsin could be ‘undone’ by new variants

“We can have a fair degree of confidence that if there was a significant number of the variants that first caused concern in the United Kingdom or in South Africa, we would have seen it by now,” UW School of Medicine and Public Health Professor David O’Connor said in a UW report posted Monday. “And the fact that we haven’t means that if these viruses are here, they’re here in low enough levels that we don’t have to worry too much — yet.”