We evaluated the timing of respiratory syncytial virus (RSV) epidemics in 2021 using Google search data. Despite the unusual out-of-season timing, the relative timing of RSV epidemics between states in 2021 shared a similar spatial pattern with typical RSV seasons. These insights can inform prophylaxis administration and planning of clinical trials.
Relative timing of RSV epidemics in summer 2021 across the US was similar to a typical RSV season