Head louse - Pediculosis [Latin name (sorted)] Pediculus humanus [Diagnostic specimen] visual identification under magnification [Prevalence] Common worldwide [Transmission/Vector] head-to-head contact [Body parts affected] 
hair follicles
s k i n
h a i r f o l l i c l e s
p u b i c a r e a , e y e l a s h e s
e y e b r o w , e y e l a s h e s
s k i n a n d w o u n d s