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    Trichophyton fungi on black background, digital illustration. — Stock Photo
    Trichophyton fungi on black background, digital illustration.
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Female patient undergoing patch test in allergy clinic. — Stock Photo
    Female patient undergoing patch test in allergy clinic.
    Front 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 on escalator and using a smartphone with metro train station in the background. — Stock Photo
    Front 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 on escalator and using a smartphone with metro train station in the background.
    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.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Stachybotrys toxic mould fruiting structure with spores, digital illustration. — Stock Photo
    Stachybotrys toxic mould fruiting structure with spores, digital illustration.
    Sick boy getting inhalation treatment in clinic — Stock Photo
    Sick boy getting inhalation treatment in clinic
    Man using strimmer in garden — Stock Photo
    Man using strimmer in garden
    Woman blowing nose on tissue. — Stock Photo
    Woman blowing nose on tissue.
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration. — Stock Photo
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration.
    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
    Light micrograph of Aspergillus sp. Fungus. — Stock Photo
    Light micrograph of Aspergillus sp. Fungus.
    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.
    Low angle 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 and using a smartphone with buildings in the background. — Stock Photo
    Low angle 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 and using a smartphone with buildings in the background.
    Asian mature woman blowing nose. — Stock Photo
    Asian mature woman blowing nose.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Wheat grains and corn in containers with laboratory equipment for food research. — Stock Photo
    Wheat grains and corn in containers with laboratory equipment for food research.
    B cells and antibodies, computer illustration. — Stock Photo
    B cells and antibodies, computer illustration.
    Microscopic dust mites colony — Stock Photo
    Microscopic dust mites colony
    Front 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 buildings in the background. — Stock Photo
    Front 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 buildings in the background.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Low angle front 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 and talking on the smartphone with buildings in the background. — Stock Photo
    Low angle front 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 and talking on the smartphone with buildings in the background.
    Beautiful African American female in medical mask standing on city street. Young woman outdoors in quarantine, COVID-19 concept. — Stock Photo
    Beautiful African American female in medical mask standing on city street. Young woman outdoors in quarantine, COVID-19 concept.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Allergenic pet dander on dog hair, colored scanning electron micrograph. — Stock Photo
    Allergenic pet dander on dog hair, colored scanning electron micrograph.
    Woman blowing nose on tissue. — Stock Photo
    Woman blowing nose on tissue.
    Alternaria fungi on black background, digital illustration. — Stock Photo
    Alternaria fungi on black background, digital illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Green colored dust mite, digital illustration. — Stock Photo
    Green colored dust mite, digital illustration.
    Caucasian woman spending time at home, wearing a face mask against coronavirus, covid 19, sitting by her desk and working, using her laptop and earphones. Social distancing and self isolation in quarantine lockdown. — Stock Photo
    Caucasian woman spending time at home, wearing a face mask against coronavirus, covid 19, sitting by her desk and working, using her laptop and earphones. Social distancing and self isolation in quarantine lockdown.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    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.
    Cute little boy suffering from cold in bed — Stock Photo
    Cute little boy suffering from cold in bed
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple. — Stock Photo
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple.
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, covering his face while coughing. — Stock Photo
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, covering his face while coughing.
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    Little girl wearing face mask ready for a bicycle ride — Stock Photo
    Little girl wearing face mask ready for a bicycle ride
    Allergenic pet dander on dog hair, colored scanning electron micrograph. — Stock Photo
    Allergenic pet dander on dog hair, colored scanning electron micrograph.
    Pink colored dust mite, digital illustration. — Stock Photo
    Pink colored dust mite, digital illustration.
    Close-up of woman wearing face mask holding cleaning materials in hands. — Stock Photo
    Close-up of woman wearing face mask holding cleaning materials in hands.
    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
    Business man with protective face mask using phone on city street — Stock Photo
    Business man with protective face mask using phone on city street
    Blond boy, wearing a respirator and showing one finger — Stock Photo
    Blond boy, wearing a respirator and showing one finger
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Light micrograph of Aspergillus sp. Fungus. — Stock Photo
    Light micrograph of Aspergillus sp. Fungus.
    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.
    Portrait of a senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19. — Stock Photo
    Portrait of a senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19.
    Light micrograph of Aspergillus sp. Fungus. — Stock Photo
    Light micrograph of Aspergillus sp. Fungus.
    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
    Hands of immunologist performing skin prick allergy testing on boy. — Stock Photo
    Hands of immunologist performing skin prick allergy testing on boy.
    Blond boy, wearing a respirator and showing stop sign — Stock Photo
    Blond boy, wearing a respirator and showing stop sign
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration. — Stock Photo
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration.
    Visual rendering of Pollen — Stock Photo
    Visual rendering of Pollen
    Side view of a mixed race woman with long dark hair sitting at a table in a cafe during the day, wearing sunglasses and a face mask against air pollution and coronavirus, working on a laptop computer with buildings in the background. — Stock Photo
    Side view of a mixed race woman with long dark hair sitting at a table in a cafe during the day, wearing sunglasses and a face mask against air pollution and coronavirus, working on a laptop computer with buildings in the background.
    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.
    Mature man sneezing into handkerchief. — Stock Photo
    Mature man sneezing into handkerchief.
    Female doctor measuring with calipers allergic reaction during skin prick test. — Stock Photo
    Female doctor measuring with calipers allergic reaction during skin prick test.