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. 2014 Sep 24;9(9):e106856. doi: 10.1371/journal.pone.0106856

Table 3. Estimation of control measures' effectiveness through SEIR models for SAS and NPHEIRMS in three school outbreaks.

Event R0 before intervention δ N. of susceptible SAS NPHEIRMS Time on SAS ahead of NPHEIRMS (day) EPR of early measures through SAS (%)
Signal N. of infections Attack rate (%) Signal N. of infections Attack rate (%)
Varicella 7.0 0.42 1283 2012/6/6 91 7.1 2012/6/6 91 7.1 0 0.0
0.69 686 2012/6/6 88 12.8 2012/6/6 88 12.8 0 0.0
12.0 0.42 1283 2012/6/6 209 16.3 2012/6/6 209 16.3 0 0.0
0.69 686 2012/6/6 194 28.3 2012/6/6 194 28.3 0 0.0
Mumps 3.8 0.55 1017 2013/4/22 51 5.0 2013/4/25 63 6.2 3 19.0
0.87 294 2013/4/22 50 17.0 2013/4/25 59 20.1 3 15.3
18.2 0.55 1017 2013/4/22 147 14.5 2013/4/25 263 25.9 3 44.1
0.87 294 2013/4/22 123 41.8 2013/4/25 185 62.9 3 33.5
ILI 1.6 0.14 1081 2013/12/16 50 4.6 2013/12/20 72 6.7 4 30.6
0.69 390 2013/12/16 49 12.6 2013/12/20 69 17.7 4 29.0
3.0 0.14 1081 2013/12/16 58 5.4 2013/12/18 92 8.5 2 37.0
0.69 390 2013/12/16 57 14.6 2013/12/18 87 22.3 2 34.5

SAS represents school absenteeism surveillance. NPHEIRMS is the National Public Health Emergency Information Reporting and Management Specification. EPR is the extra protective rate.