Table 1 Evaluation of the different intervention measures on the MP outbreak. TAR: total attack rate; TIR: total infection rate; DO: duration of outbreak; 90% Iso + 90% VD: 90% of cases isolated and 90% of transmission risk reduced by ventilation and disinfection; C4d + 90% Iso + 90% VD: school closure for 4 days, 90% of cases isolated and 90% of transmission risk reduced by ventilation and disinfection; C10d + 90% Iso + 90% VD: school closure for 10 days, 90% of cases isolated and 90% of transmission risk reduced by ventilation and disinfection.

Intervention	cases	TAR (%)	% decrease of TAR	TIR (%)	% decrease of TIR	DO (days)
None	122	75.78	-	95.65	-	143
School closure
4 days	122	75.78	0.00	95.65	0.00	152
7 days	121	75.16	0.62	95.65	0.00	163
10 days	121	75.16	0.62	95.03	0.62	177
Case isolation
60%	92	57.14	18.64	71.43	24.22	190
70%	76	47.20	28.58	59.01	36.64	186
80%	57	35.40	40.38	44.10	51.55	189
90%	38	23.60	52.18	29.81	65.84	194
100% at Day 1	25	15.53	60.25	19.88	75.77	164
100% at Day 3	28	17.39	58.39	22.36	73.29	163
100% at Day 5	32	19.88	55.90	24.84	70.81	152
100% at Day 10	41	25.47	50.31	31.68	63.97	151
100% at Day 15	51	31.68	44.10	39.75	55.90	147
Ventilation and disinfection
60%	65	40.37	35.41	50.31	45.34	192
70%	40	24.84	50.94	31.06	64.59	194
80%	24	14.91	60.87	18.63	77.02	184
90%	16	9.94	65.84	13.04	82.61	92
100% at Day 1	13	8.07	67.71	9.94	85.71	48
100% at Day 3	15	9.32	66.46	11.18	84.47	53
100% at Day 5	17	10.56	65.22	13.04	82.61	54
100% at Day 10	24	14.91	60.87	18.63	77.02	66
100% at Day 15	32	19.88	55.90	25.47	70.18	84
Combinations
90% Iso + 90% VD	14	8.70	67.08	10.56	85.09	58
C4d + 90% Iso + 90% VD	14	8.70	67.08	10.56	85.09	60
C10d + 90% Iso + 90% VD	13	8.07	67.71	10.56	85.09	65

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