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Table 1 Moving Epidemic Method (MEM) threshold levels for influenza epidemic activity

From: Assessment of two complementary influenza surveillance systems: sentinel primary care influenza-like illness versus severe hospitalized laboratory-confirmed influenza using the moving epidemic method

Threshhold level (×  100.000 h) baseline low medium high
SHLCI 1.82 9.18 20.91 30.1
SHLCI-FLUA 1.33 7.07 23.36 39.61
SHLCI-FLUB 0.5 1.56 4.27 6.25
PIDIRAC-ILI 74.00 293.45 425.12 500.8
PIDIRAC-FLU 13.35 59.48 84.98 99.5
PIDIRAC-FLUA 10.06 33.99 90.52 139.56
PIDIRAC-FLUB 5.95 24.97 57.66 83.47
  1. SHLCI Severe hospitalized laboratory confirmed influenza, SHLCI-FLUA A Severe hospitalized laboratory confirmed influença type A, SHLCI-FLUA B Severe hospitalized laboratory confirmed influença type B, PIDIRAC-ILI Incidence rate for Primary care inflenza like illness, PIDIRAC-FLU Incidence rate for Primary care influenza laboratory confirmed cases, PIDIRAC-FLUA Incidence rate for Primary care influença type A laboratory confirmed cases, PIDIRAC-FLUB Incidence rate for Primary care influenza type B laboratory confirmed cases