Rapid antigen testing for the surveillance of influenza epidemics W. Wunderli, Y. Thomas, D.A. Müller, M. Dick, L. Kaiser  Clinical Microbiology and Infection  Volume 9, Issue 4, Pages 295-300 (April 2003) DOI: 10.1046/j.1469-0691.2003.00650.x Copyright © 2003 European Society of Clinical Infectious Diseases Terms and Conditions

Figure 1 Epidemiologic curve of the influenza virus detected each week by cell culture and by the ‘near patient’ test during the 1999-2000 and the 2000-2001 seasons. Absolute number of influenza-positive samples detected by the ‘near patient’ test (open bars) or by the culture method (black bars). MC-ILI (%): percentage of medical contacts for ILI declared by the SSSN participants. Dotted line: threshold of 1.5% (MC-ILI) for an influenza epidemic. Values above 1.5% indicate an ongoing epidemic. Numbers on the horizontal axis indicate the number of the week of the corresponding year where the results were indicated. Clinical Microbiology and Infection 2003 9, 295-300DOI: (10.1046/j.1469-0691.2003.00650.x) Copyright © 2003 European Society of Clinical Infectious Diseases Terms and Conditions