Table 1. Summary of delay from arrival in non-endemic region to onset of symptoms and to date of diagnosis for 326 cases of imported P. malariae infection.

Patient origin	Total cases	Travel destinations (frequency)	Median delay from arrival to onset of symptoms (IQR) [range]	Median delay from arrival to diagnosis (IQR) [range]
China	6	Equatorial Guinea (3)	20 days	27.5 days
		Angola (1)	(5–37)	(13–37)
		Liberia (1)	[2–126]	[9–127]
		Nigeria (1)	N = 6	N = 6
Sweden	21	Uganda (5)	19 days	31 days
		The Gambia (4)	(13–47)	(20.5–59.5)
		Kenya (3)	[0–70]	[3–84]
		Ghana (2)	N = 20	N = 20
		5 other African origins
United Kingdom	611	Nigeria (150)	24 days	31 days
		Uganda (64)	(9–50)	(16–66)
		Ghana (61)	[-5–1123]	[0–1758]
		Kenya (46)	N = 248	N = 333*
		Congo (16)
		Cameroon (15)
		Malawi (13)
		Sierra Leone (13)
		Gambia (12)
		Tanzania (12)
		Ivory Coast (8)
		Mozambique (7)
		Zambia (4)
		Zimbabwe (4)
		Sudan (3)
		Liberia (2)
		Madagascar (2)
		Senegal (2)
		South Africa (2)
		Togo (2)
		10 single African origins;
		55 unspecified “Africa”;
		Non-African origin:
		Brunei (1)
		French Guiana (1)
		Guyana (1)
		Malaysia (1)
		New Guinea (1)
		Pakistan (1)
		Yemen (1)

* Date of diagnosis was more reliably collected than date of onset of symptoms in the UK dataset.