Table 1.

Prevalence of Borrelia afzelii detected by PCR in ticks collected from several mammals in South Korea, 2015–2019.

Species	Region	Stage	No. Tick Positive/Tick Pool (%)
			Horse	Wild Boar	Native Korean Goat	Korean Water Deer	Total
Haemaphysalis longicornis	Northern	Nymph	0	0	0	0/10	0/10
		Adult	0	0/2	0	0/24	0/26
	Central	Nymph	0	0	0	0/11	0/11
		Adult	0	0/1	0	0/22	0/23
	Southern	Nymph	0	0	0/12	0/13	0/25
		Adult	0	0/2	1/10 (10)	0/28	1/40 (2.5)
	Jeju Island	Nymph	0	0	0	0	0
		Adult	2/147 (1.4)	0	0	0	2/147 (1.4)
	Subtotal	Nymph	0	0	0/12	0/34	0/46
		Adult	2/147 (1.4)	0/5	1/10 (10)	0/74	3/236 (0.9)
Haemaphysalis flava	Central	Nymph	0	0	0	0/1	0/1
		Adult	0	0/4	0	0/4	0/8
	Southern	Nymph	0	0	0/3	0/1	0/4
		Adult	0	1/10 (10)	0/4	0/6	1/20 (5)
	Subtotal	Nymph	0	0	0/3	0/2	0/5
		Adult	0	1/14 (7.1)	0/4	0/10	1/28 (3.6)
Ixodes nipponensis	Central	Nymph	0	0	0	0/1	0/1
		Adult	0	0	0	1/4 (25)	1/4 (25)
	Southern	Nymph	0	0	0/3	0	0/3
		Adult	0	0	1/2 (50)	0/4	1/6 (16.7)
	Subtotal	Nymph	0	0	0/3	0/1	0/4
		Adult	0	0	1/2 (50)	1/8 (12.5)	2/10 (20)
	Total		2/147 (1.4)	1/19 (5.3)	2/34 (5.9)	1/129 (0.8)	6/329 (1.8)