The likelihood of severe COVID-19 increases with age upon SARS-CoV-2 infection and even milder disease manifestations might differ among age groups. Here authors show, by immune transcriptome analysis of samples from the upper respiratory tract and peripheral blood of participants from different age groups, that interferon responses are more typical for the young, while activation of myeloid, inflammatory, and coagulation pathways is exclusive to adults.
- Jillian H. Hurst
- Aditya A. Mohan
- Matthew S. Kelly