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A new study published in Scientific Reports reveals that COVID-19 rates in the US oscillate every six months, with waves sweeping the Eastern USA in a North-South pattern. This spatiotemporal pattern, previously not well understood, indicates that COVID-19 may not yet meet the criteria for a seasonal infection. The study highlights that while winter waves are consistent with other respiratory viruses, the repeated additional surge during the summer was unexpected. "The COVID-19 winter waves are consistent with that of other respiratory viruses, but the existence of a repeated additional surge during the summer was unexpected," said an expert. The latest COVID wave is ebbing in most states, but a new subvariant, first detected in Germany and circulating in Europe over the summer, has now made its way to the US.
