Distribution of malaria vectors and incidence of vivax malaria at Korean army installations near the demilitarized zone, Republic of Korea

Table 2 The number female Anopheles spp. positive for P. vivax sporozoites and total number collected, by species, and seasonal correlations between vivax malaria positive Anopheles species and vivax malaria cases among ROKA soldiers at the nine ROKA installations located <2 km and 11–12 km from the DMZ, Paju and Yeoncheon counties, Gyeonggi Province, ROK, from May–October, 2011

Species	Number of female Anopheles spp. positive for P. vivax sporozoites/total number collected (MFIR)^a						Correlation^c
Species	May (0)^b	Jun (2)	Jul (11)	Aug (6)	Sep (1)	Oct (1)	n	Sig.	Value
Anopheles lesteri	1/5 (20.0)	0/13 (0.0)	3/31 (9.7)	1/22 (4.5)	1/11 (9.1)	0/0 (0.0)	6	0.046^d	0.82
An. sineroides	0/7 (0.0)	0/18 (0.0)	1/25 (4.0)	3/46 (6.5)	2/81 (2.5)	0/3 (0.0)	6	0.466	0.374
An. belenrae	2/17 (11.8)	1/32 (3.1)	3/46 (6.5)	3/54 (5.6)	3/41 (7.3)	0/2 (0.0)	6	0.287	0.523
An. sinensis	0/0 (0.0)	0/1 (0.0)	4/34 (11.8)	5/56 (8.9)	4/20 (20.0)	0/3 (0.0)	6	0.171	0.64
An. pullus	6/81 (7.4)	7/146 (4.8)	9/99 (9.1)	14/228 (6.1)	8/184 (4.3)	0/1 (0.0)	6	0.279	0.53
An. kleini	8/69 (11.6)	32/809 (4.0)	66/661 (10.0)	48/924 (5.2)	9/501 (1.8)	0/11 (0.0)	6	0.006^e	0.936
Total	17/179 (9.5)	40/1019 (3.9)	86/896 (9.6)	74/1330 (5.6)	27/838 (3.2)	0/20 (0.0)	6	0.012^d	0.911

^aNumber of vivax malaria positive Anopheles sp./total number of Anopheles spp., by species and month of collection
^bPercent of Anopheles spp. positive for P. vivax sporozoites
^cCorrelation between the number of Anopheles spp. positive for P. vivax sporozoites and vivax malaria patients from the 9 ROKA installations from May–October
^{d, e}Correlations significant at P < 0.05 and P < 0.01 by Pearson correlation test, respectively

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