parasite worm mosaic icon of abrupt parts

applegrub ascaris bacteriological biological biology bloodsucker collage composed composition creature dangerous design dot element flat gaunt germs helminth humpy icon illness illustration inequal infect infected infection insect item microorganism object parasite parasitic parasitism pathogen pattern pest rough roundworm schistosomiasis sickness symbol tapeworm toxocariasis tremulant tuberous unequal uneven vector virus worm