Immunity debt for seasonal influenza after the COVID-19 pandemic and as a result of non-pharmaceutical interventions: an ecological analysis and cohort study by Chen, L, Guo, Y, López-Güell, K, Ma, J, Dong, Y, Xie, J, Prieto Alhambra, D

“…Where individual-level data available (France, the United Kingdom, Spain, Italy, Belgium, and Romania), we replicated our analyses of influenza monthly rate in six Europe countries (France, the United Kingdom, Spain, Italy, Belgium, and Romania). …”