pathogen virus disease icon hand drawn

pathogen virus disease collection icons set vector doodle sketch bacteria protozoa malaria mold bread vibrio cholerae concept linear pictograms contour illustration signs items isolated background pack graphic symbol influenza varicella zoster pneumococcus infection stick flask analysis haemophilus influenzae zika bacteriophage coccus bacillus anthracis dangerous anaplasma phagocytophilum staphylococcus aureus salmonella monochrome