Respiratory virus surveillance in Canada during the COVID-19 pandemic: An epidemiological analysis of the effectiveness of pandemic-related public health measures in reducing seasonal respiratory viruses test positivity
Fig 1
Test positivity of respiratory viruses based on weekly laboratory surveillance data in Canada.
The grey vertical bar indicates initiation of preventive measures against coronavirus disease 2019. Respiratory syncytial virus (RSV), parainfluenza virus (PIV), adenovirus (ADV), human metapneumovirus (MPV), human rhinovirus/enterovirus (RV/EV), seasonal human coronavirus (COV), and influenza A/B (IFV).