%0 Journal Article %T Severity of respiratory tract infections depends on the infectious dose. Perspectives for the next pandemic. %A Mølbak K %A Sørensen TIA %A Bhatt S %A Lyngse FP %A Simonsen L %A Aaby P %J Front Public Health %V 12 %N 0 %D 2024 %M 38746005 %F 6.461 %R 10.3389/fpubh.2024.1391719