Table IV.

Time of presentation (date of lab diagnosis-date of arrival in UK) to hospital/GP for malaria, 1998 – 2003, Northern Ireland (n = 76)

Plasmodium species	Time interval between arrival to UK and lab diagnosis (days)
	Range	Medium	Mean
P. falciparum	(−2)*–35	8	10
P. vivax	1-365	90	104
P.ovale	14-244	116	116
P.malariae	36-112	74	74
Combination of 2 species	12-20	16	16

Note: *One patient diagnosed 2 days prior to return to UK