Table 1.

Locality of study areas and frequency of collected head lice from various settlement types

Province	District	Geographical coordinates		Type of settlement			Total
		Latitude (N)	Longitude (E)	Urban	Suburban	Rural
Ardabile	Ardabile	38.1201–38.5163	48.1294–48.3703	10	17	15	42
	Khalkhal	37.6111–37.8753	48.2770–48.3936	8	16	12	36
East Azarbayjan	Bostan Abad	37.7933–37.8578	46.8483–46.8503	6	4	12	22
	Myianeh	37.2126–37.5226	47.4541–47.9954	64	67	150	281
	Tabriz	37.9363–38.3294	45.9187–46.3368	67	74	45	186
	Varzqan	38.4912–38.5116	46.6126–46.6821	8	4	8	20
West Azarbayjan	Khoy	38.5715–38.5895	44.9051–45.0390	7	25	35	67
	Salmas	38.1913–38.3400	44.6926–44.8450	4	12	15	31
	Tekab	36.4119–36.6062	46.9483–47.1116	4	3	5	12
	Urmia	37.5308–38.1765	44.1905–45.2080	14	15	17	46
Zanjan	Khodabandeh	35.8425–36.2536	47.6499–48.7449	5	6	3	14
	Mahneshan	36.7390–36.8799	47.6704–47.6880	15	10	35	60
	Zanjan	36.6367–36.6881	48.5214–48.5844	36	20	24	80
Total				248	273	376	897