英文關鍵字
animal
aversion
bean
beast
blood
castor
close
crawl
disease
exciter
grass
health
ill
infection
insect
ixodes
ixodidae
legs
lyme
macro
man
meningitis
mite
parasite
pathogen
pitfall
prophylaxis
puncture
ricinus
skin
small
spring
sting
suction
tick
tiny
virus
world