Burden of severe respiratory illness and those associated with
respiratory viruses
During 2013-2015, among individuals of any age the estimated mean annual
number of SRI episodes was 2,268,125 (rate: 4,196 per 100,000
population) (Table S5) of which 1,051,701 (46.4%; rate: 1,945 per
100,000 population) were medically attended (Table S6). The SRI rates
were highest in infants aged <1 year followed by individuals
aged ≥65 years (Figure 4 and Table S5). Overall, among patients with SRI
rhinovirus had the highest rate (400 per 100,000 population) followed by
RSV (247 per 100,000 population) and influenza (130 per 100,000
population) (Figure 2 and Table S5). Among children aged <5
years RSV had the highest rate (2,026 per 100,000 population) followed
by rhinovirus (1,638 per 100,000 population) and adenovirus (667 per
100,000 population) (Figure 2 and Table S5). Among individuals aged ≥5
years rhinovirus had the highest rate (253 per 100,000 population)
followed by influenza (98 per 100,000 population) and PIV types 1-3 (39
per 100,000 population) (Figure 2 and Table S5). The respiratory
viruses-associated SRI rates were highest in infants aged <1
year followed by children aged 1-4 years with the exception of influenza
where the second highest rate was among individuals aged ≥65 years
(Figure 4 and Table S5) and PIV type 2 where the highest rate was among
individuals aged ≥65 years followed by infants aged <1 year
(Figure 5 and Table S8). The rates of medically and non-medically
attended respiratory viruses-associated SRI are provided in Tables S6,
S7 and S9.