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    Elementary age ill girl using handkerchief while sneezing outdoors. — Stock Photo
    Elementary age ill girl using handkerchief while sneezing outdoors.
    Close-up of hands with pink gloves holding cleaning materials. — Stock Photo
    Close-up of hands with pink gloves holding cleaning materials.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Preschooler boy using inhaler mask with help of female nurse. — Stock Photo
    Preschooler boy using inhaler mask with help of female nurse.
    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.
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration. — Stock Photo
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration.
    3d rendered illustration of dust mite on human skin. — Stock Photo
    3d rendered illustration of dust mite on human skin.
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    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.
    Pour milk into muesli — Stock Photo
    Pour milk into muesli
    Dust mite, light micrograph — Stock Photo
    Dust mite, light micrograph
    Spring flowers representing healthy and unhealthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy and unhealthy human lungs, conceptual studio shot.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, riding his bicycle. — Stock Photo
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, riding his bicycle.
    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
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration. — Stock Photo
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration.
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration. — Stock Photo
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration.
    Man blowing nose with tissue. — Stock Photo
    Man blowing nose with tissue.
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration. — Stock Photo
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration.
    Illustration of gluten inside the colon. — Stock Photo
    Illustration of gluten inside the colon.
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration. — Stock Photo
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Mast cell releasing histamine during allergic response, digital illustration. — Stock Photo
    Mast cell releasing histamine during allergic response, digital illustration.
    Asthma inhaler against white background. — Stock Photo
    Asthma inhaler against white background.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Allergenic pet dander on dog hair, colored scanning electron micrograph. — Stock Photo
    Allergenic pet dander on dog hair, colored scanning electron micrograph.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Senior Caucasian man sitting at a table at a coffee terrace, wearing a face mask against coronavirus, covid 19, using a smartphone and laptop computer. — Stock Photo
    Senior Caucasian man sitting at a table at a coffee terrace, wearing a face mask against coronavirus, covid 19, using a smartphone and laptop computer.
    Senior woman inhaling medicine from asthma pump. — Stock Photo
    Senior woman inhaling medicine from asthma pump.
    Dust mite consuming skin flake — Stock Photo
    Dust mite consuming skin flake
    Caucasian woman spending time at home self isolating and social distancing in quarantine lockdown during coronavirus covid 19 epidemic, wearing a face mask against covid19 coronavirus, standing by a window and using her tablet. — Stock Photo
    Caucasian woman spending time at home self isolating and social distancing in quarantine lockdown during coronavirus covid 19 epidemic, wearing a face mask against covid19 coronavirus, standing by a window and using her tablet.
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, hailing a taxi. — Stock Photo
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, hailing a taxi.
    Close-up of immunologist performing skin prick allergy testing on boy. — Stock Photo
    Close-up of immunologist performing skin prick allergy testing on boy.
    Senior woman using asthma inhaler with extension tube. — Stock Photo
    Senior woman using asthma inhaler with extension tube.
    Female immunologist performing skin prick allergy testing on preschooler boy. — Stock Photo
    Female immunologist performing skin prick allergy testing on preschooler boy.
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, riding his bicycle. — Stock Photo
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, riding his bicycle.
    Stachybotrys fungus on black background, digital illustration. — Stock Photo
    Stachybotrys fungus on black background, digital illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic 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
    Red interleukin cells binding to blue receptor, digital illustration. — Stock Photo
    Red interleukin cells binding to blue receptor, digital illustration.
    African American girl social distancing at home during quarantine lockdown, wearing a stripped t-shirt, covering her nose with a tissue while sneezing, in a garden on a sunny day. — Stock Photo
    African American girl social distancing at home during quarantine lockdown, wearing a stripped t-shirt, covering her nose with a tissue while sneezing, in a garden on a sunny day.
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration. — Stock Photo
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Dust mite consuming skin flake — Stock Photo
    Dust mite consuming skin flake
    Trichophyton fungi on black background, digital illustration. — Stock Photo
    Trichophyton fungi on black background, digital illustration.
    Stachybotrys toxic mould fruiting structure with spores, digital illustration. — Stock Photo
    Stachybotrys toxic mould fruiting structure with spores, digital illustration.
    Woman blowing nose on tissue. — Stock Photo
    Woman blowing nose on tissue.
    Side view of a mixed race woman with long dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, standing in a city street with suitcase with buildings in the background. — Stock Photo
    Side view of a mixed race woman with long dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, standing in a city street with suitcase with buildings in the background.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Little boy blowing nose in hospital on check up — Stock Photo
    Little boy blowing nose in hospital on check up
    Digital illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Digital illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    3d illustration of leukocyte cells secreting allergen antibodies while allergy. — Stock Photo
    3d illustration of leukocyte cells secreting allergen antibodies while allergy.
    Asthma spacer against white background. — Stock Photo
    Asthma spacer against white background.
    Front view of a mixed race woman with long dark hair sitting at a table in a cafe during the day, wearing a face mask against air pollution and coronavirus, working on a laptop computer with buildings in the background. — Stock Photo
    Front view of a mixed race woman with long dark hair sitting at a table in a cafe during the day, wearing a face mask against air pollution and coronavirus, working on a laptop computer with buildings in the background.
    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.
    Side view of a mixed race woman with long dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, standing with a hand to her mouth with grey wall in the background. — Stock Photo
    Side view of a mixed race woman with long dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, standing with a hand to her mouth with grey wall in the background.
    Young female in casual orange jacket putting on white protective mask against orange background — Stock Photo
    Young female in casual orange jacket putting on white protective mask against orange background