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    Senior woman using asthma inhaler with extension tube. — Stock Photo
    Senior woman using asthma inhaler with extension tube.
    Female doctor attends to her patient in the clinic. They have the mask on. — Stock Photo
    Female doctor attends to her patient in the clinic. They have the mask on.
    Mature woman blowing nose on tissue. — Stock Photo
    Mature woman blowing nose on tissue.
    Green colored dust mite, digital illustration. — Stock Photo
    Green colored dust mite, digital illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Mother and child looking out their home window to see if the danger of possible infection has passed — Stock Photo
    Mother and child looking out their home window to see if the danger of possible infection has passed
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    Close-up of syringes for allergy patch test. — Stock Photo
    Close-up of syringes for allergy patch test.
    Blond boy, wearing a respirator and showing one finger — Stock Photo
    Blond boy, wearing a respirator and showing one finger
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Antihistamine tablets and flowers, studio shot. — Stock Photo
    Antihistamine tablets and flowers, studio shot.
    Blond boy, about 8 years old, wearing a respirator to co-infect himself with a virus — Stock Photo
    Blond boy, about 8 years old, wearing a respirator to co-infect himself with a virus
    Female doctor performing skin prick allergy testing on boy for possible allergen. — Stock Photo
    Female doctor performing skin prick allergy testing on boy for possible allergen.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Abstract male body with sore throat on white background, conceptual digital illustration. — Stock Photo
    Abstract male body with sore throat on white background, conceptual digital illustration.
    Asthma inhaler against white background. — Stock Photo
    Asthma inhaler against white background.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Preschooler boy using inhaler mask with help of female nurse. — Stock Photo
    Preschooler boy using inhaler mask with help of female nurse.
    Digital illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Digital illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    Blond boy, wearing a respirator and showing stop sign — Stock Photo
    Blond boy, wearing a respirator and showing stop sign
    Man blowing nose with tissue. — Stock Photo
    Man blowing nose with tissue.
    3d illustration of variety of different pollen grains. — Stock Photo
    3d illustration of variety of different pollen grains.
    Pulmonologist helping little boy with inhaler, mother in background. — Stock Photo
    Pulmonologist helping little boy with inhaler, mother in background.
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Preschooler boy using inhaler mask with help of female nurse. — Stock Photo
    Preschooler boy using inhaler mask with help of female nurse.
    Blond boy, about 8 years old, wearing a respirator to co-infect himself with a virus — Stock Photo
    Blond boy, about 8 years old, wearing a respirator to co-infect himself with a virus
    Boy home schooling with a medical mask on to protect from a virus — Stock Photo
    Boy home schooling with a medical mask on to protect from a virus
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Sick little boy blowing nose while sitting on hospital bed with female nurse standing nearby — Stock Photo
    Sick little boy blowing nose while sitting on hospital bed with female nurse standing nearby
    Sick mature woman sneezing into tissue. — Stock Photo
    Sick mature woman sneezing into tissue.
    Digital illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Digital illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    Senior woman using asthma inhaler with extension tube. — Stock Photo
    Senior woman using asthma inhaler with extension tube.
    Illustration of gluten inside the colon. — Stock Photo
    Illustration of gluten inside the colon.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Asthma nebulizer against white background. — Stock Photo
    Asthma nebulizer against white background.
    Sick boy getting inhalation treatment in clinic — Stock Photo
    Sick boy getting inhalation treatment in clinic
    Little boy blowing nose in hospital on check up — Stock Photo
    Little boy blowing nose in hospital on check up
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Pulmonologist helping little boy with inhaler, mother in background. — Stock Photo
    Pulmonologist helping little boy with inhaler, mother in background.
    Close-up of mature woman sneezing into tissue. — Stock Photo
    Close-up of mature woman sneezing into tissue.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Blue colored dust mite, digital illustration. — Stock Photo
    Blue colored dust mite, digital illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    Blond boy, about 8 years old, wearing a respirator to co-infect himself with a virus — Stock Photo
    Blond boy, about 8 years old, wearing a respirator to co-infect himself with a virus
    Female doctor measuring with calipers allergic reaction during skin prick test. — Stock Photo
    Female doctor measuring with calipers allergic reaction during skin prick test.
    Man sneezing into handkerchief outdoors. — Stock Photo
    Man sneezing into handkerchief outdoors.
    Female doctor performing allergy skin prick test on little boy with mother in immunologist office. — Stock Photo
    Female doctor performing allergy skin prick test on little boy with mother in immunologist office.
    Light micrograph of Aspergillus sp. Fungus. — Stock Photo
    Light micrograph of Aspergillus sp. Fungus.
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Female pediatrician performing allergy skin prick test on little boy with mother in immunologist office. — Stock Photo
    Female pediatrician performing allergy skin prick test on little boy with mother in immunologist office.
    Abstract male body with sore throat on black background, conceptual digital illustration. — Stock Photo
    Abstract male body with sore throat on black background, conceptual digital illustration.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Panoramic illustration of blood vessel with eosinophilia with numerous eosinophils white blood cells, anti-parasite immune system. — Stock Photo
    Panoramic illustration of blood vessel with eosinophilia with numerous eosinophils white blood cells, anti-parasite immune system.
    Purple colored dust mite, digital illustration. — Stock Photo
    Purple colored dust mite, digital illustration.
    Green colored dust mite, digital illustration. — Stock Photo
    Green colored dust mite, digital illustration.
    Wheat grains in petri dish with laboratory equipment for food research. — Stock Photo
    Wheat grains in petri dish with laboratory equipment for food research.