Fig. 4

Reported tests and symptoms over the study period. Histogram plots display on the y-axis the number of A all reported COVID-19 tests by test method, B reported positive COVID-19 tests by test method, C reported symptoms split by corona-like-illness symptoms (CLI) and all other symptoms over the study period (08/12/2021 – 10/31/2021) on the x-axis. The MG period is highlighted in blue, spanning from 09/02/2022 to 09/05/2022. The highlighted surveillance period (09/04/2021 – 09/17/2021) reflects the period of high risk for occurrence of MG-related COVID-19 cases