Table 2.

Seasonal index of each type of class C infectious disease

Disease	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Range	STD
HFMD	0.25	0.16	0.53	1.46	2.09	2.08	1.59	0.81	0.86	0.82	0.75	0.59	1.93	0.63
Diarrhoea	0.77	0.55	0.59	0.63	0.85	1.09	1.34	1.35	1.10	1.12	1.33	1.28	0.80	0.29
Mumps	0.94	0.55	0.79	1.23	1.60	1.68	1.39	0.75	0.56	0.64	0.84	1.03	1.12	0.37
Influenza	1.25	1.03	1.24	0.81	0.68	0.70	0.58	0.68	1.17	0.9	1.32	1.63	1.05	0.31
Conjunctivitis	0.52	0.49	0.78	0.90	1.05	1.13	1.21	1.45	1.68	1.05	0.91	0.83	1.19	0.33
Rubella	0.38	0.38	1.13	2.59	3.06	2.13	0.84	0.34	0.25	0.23	0.28	0.39	2.83	0.97
Hydatid	0.83	0.69	1.00	0.94	0.97	0.92	0.91	1.14	0.96	0.91	1.11	1.62	0.93	0.22
Typhus	0.62	0.51	0.66	0.67	1.05	1.16	1.29	1.37	1.37	1.40	1.08	0.82	0.89	0.32
Leprosy	1.00	0.85	1.32	1.19	1.21	1.12	1.10	0.95	0.90	0.67	0.85	0.84	0.66	0.18
Kala-azar	1.12	0.87	1.10	1.17	1.05	1.02	0.74	0.73	0.85	0.98	1.15	1.21	0.48	0.16

HFMD, hand foot and mouth disease.