Figure 1.

Cumulative number of invasive disease cases collected by Invasive Respiratory Infection Surveillance laboratories each week from Jan 1, 2018, to May 31, 2020

Data for Streptococcus pneumoniae, Haemophilus influenzae, and Neisseria meningitidis were obtained from Belgium, Brazil, Canada (S pneumoniae only), China (S pneumoniae and H influenzae only), Czech Republic, Denmark, England, Finland, France, Germany, Hong Kong, Iceland, Ireland, Israel (S pneumoniae and H influenzae only), Luxembourg, the Netherlands, New Zealand, Northern Ireland, Poland, Scotland, South Africa, South Korea (S pneumoniae and H influenzae only), Spain (S pneumoniae and N meningitidis only), Sweden, Switzerland (S pneumoniae and H influenzae only), and Wales. Data for Streptococcus agalactiae were obtained from Denmark, England, Finland, Germany, Iceland, Ireland, Israel, the Netherlands, and Poland. The grey dotted line (on week 11) shows when WHO officially declared the COVID-19 pandemic. ISO=International Organization for Standardization.