enlarged image of dust mites on a mattress causes of allergies and asthma dermatophagoides pteronyssinus and dermatophagoides

enlarged dust mite mattress bug closeup tick macro allergy asthma dermatophagoides pteronyssinus farinae micro pillow microscopic electron microscope parasite allergen immune system dirt excretion feces germs disease realistic life cycle microbiology animal zoology breathing air bed sheet skin carpet bedspread infection house cleaning bedroom mites dusty acarian insect itching sneezing ringworm itchy bite cleanliness allergies