COVID-19 Seasonality Revealed

New research suggests that the COVID-19 epidemic has a unique pattern of seasonal waves, with cases peaking in both winter and summer. Scientists analyzed data from the pandemic and found that the timing of these waves is linked to colder temperatures, but this alone doesn't fully explain why the virus is causing multiple outbreaks every year. Instead, researchers believe that the virus's immunity wanes at a specific rate, leading to new waves of cases as the population's defenses weaken. This seasonal pattern is unlike other respiratory viruses, which typically peak in winter.