Children's rates are per 100,000 children and adults' per 100,000 adults, so the two are directly comparable within a virus. RSV in young children is the standout. Grey = no reporting that month. Hospital reporting was voluntary before it became mandatory on Nov 1 2024 (and RSV/flu were added after COVID), so earlier months have thinner coverage. The colour scale is fixed per series across all months, so colours are comparable as you slide through time.