Fig. 4
Severity of infectious disease by age for COVID-19, MERS-CoV, St Louis encephalitis, Western equine encephalitis, diphtheria, Escherichia coli, and dengue. The 95% confidence intervals on the estimates are shown where they are known or could be calculated. (a) COVID-19 in Spain 2020, notified deaths/notified confirmed cases, as of 11 May 2020117; (b) MERS-CoV in Saudi Arabia June 2012-July 2014 and 2017–18, case fatality rate124,125; (c) S Louis encephalitis in St Louis, US, 1933, case fatality rate126, (d) Campylobacter in Canada, 2001–4, percent hospitalised57; (e) Western equine encephalitis in Mannitoba, Canada, 1941, case fatality rate134; (f) Diphtheria in London, UK, 1894–1903, notified deaths/notified cases135; (g) E coli 0104/H4 Hamburg, Germany, 2011, proportion developing haemolytic uraemic syndrome138; (h) Dengue in Brazil 2000–2014, proportion haemorrhagic, with any complications, and hospitalised142.
