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    Cropped shot of woman using inhaler device. — Stock Photo
    Cropped shot of woman using inhaler device.
    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
    Side view close up of a mixed race woman with dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, standing with hands to her mouth with her bicycle in the background. — Stock Photo
    Side view close up of a mixed race woman with dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, standing with hands to her mouth with her bicycle in the background.
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration. — Stock Photo
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration.
    Alternaria fungi on black background, digital illustration. — Stock Photo
    Alternaria fungi on black background, 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.
    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.
    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.
    Adult Pubic louse on hair — Stock Photo
    Adult Pubic louse on hair
    Peanut butter sandwich on colorful children's plate with empty chair — Stock Photo
    Peanut butter sandwich on colorful children's plate with empty chair
    Trichophyton fungi on black background, digital illustration. — Stock Photo
    Trichophyton fungi on black background, digital illustration.
    Mature woman blowing nose on tissue. — Stock Photo
    Mature woman blowing nose on tissue.
    Low angle side view of a mixed race woman with dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, riding on her bicycle with buildings in the background. — Stock Photo
    Low angle side view of a mixed race woman with dark hair out and about in the city streets during the day, wearing a face mask against air pollution and coronavirus, riding on her bicycle with buildings in the background.
    Cropped shot of woman holding inhaler device. — Stock Photo
    Cropped shot of woman holding inhaler device.
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    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, walking with her bicycle and using a smartphone — 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, walking with her bicycle and using a smartphone
    Close-up of woman scratching itchy arm. — Stock Photo
    Close-up of woman scratching itchy arm.
    Blond boy, wearing a respirator and showing stop sign — Stock Photo
    Blond boy, wearing a respirator and showing stop sign
    Senior woman using asthma inhaler with extension tube. — Stock Photo
    Senior woman using asthma inhaler with extension tube.
    Blue colored dust mite, digital illustration. — Stock Photo
    Blue colored dust mite, digital illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    3d illustration of leukocyte cells secreting allergen antibodies while allergy. — Stock Photo
    3d illustration of leukocyte cells secreting allergen antibodies while allergy.
    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.
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Little boy blowing nose in hospital on check up — Stock Photo
    Little boy blowing nose in hospital on check up
    Stachybotrys toxic mould fruiting structure with spores, digital illustration. — Stock Photo
    Stachybotrys toxic mould fruiting structure with spores, digital illustration.
    Child girl using medical spray for breath. Inhaler. Front view — Stock Photo
    Child girl using medical spray for breath. Inhaler. Front view
    Dust mite, light micrograph — Stock Photo
    Dust mite, light micrograph
    Stachybotrys toxic mould fruiting structure with spores, digital illustration. — Stock Photo
    Stachybotrys toxic mould fruiting structure with spores, 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.
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant. — Stock Photo
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant.
    Female patient undergoing patch test in allergy clinic. — Stock Photo
    Female patient undergoing patch test in allergy clinic.
    Stachybotrys toxic mould fruiting structure with spores, digital illustration. — Stock Photo
    Stachybotrys toxic mould fruiting structure with spores, digital illustration.
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, sitting on stairs, drinking takeaway coffee and using his laptop computer. . — Stock Photo
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19, sitting on stairs, drinking takeaway coffee and using his laptop computer. .
    Woman blowing nose on tissue. — Stock Photo
    Woman blowing nose on tissue.
    Man with beard wearing face mask — Stock Photo
    Man with beard wearing face mask
    Dust mite consuming skin flake — Stock Photo
    Dust mite consuming skin flake
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    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.
    Doctor treats children's hands with an antiseptic — Stock Photo
    Doctor treats children's hands with an antiseptic
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration. — Stock Photo
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration.
    Purple colored dust mite, digital illustration. — Stock Photo
    Purple colored dust mite, digital illustration.
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration. — Stock Photo
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration.
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19.putting on face mask against air pollution and coronavirus. — Stock Photo
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19.putting on face mask against air pollution and coronavirus.
    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, 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.
    Caucasian woman spending time at home self isolating and social distancing in quarantine lockdown during coronavirus covid 19 epidemic, putting on a face mask against covid19 coronavirus, standing by a window. — Stock Photo
    Caucasian woman spending time at home self isolating and social distancing in quarantine lockdown during coronavirus covid 19 epidemic, putting on a face mask against covid19 coronavirus, standing by a window.
    Businesswoman with allergies sneezing into tissue at computer in office — Stock Photo
    Businesswoman with allergies sneezing into tissue at computer in office
    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.
    Visualization of dust mite — Stock Photo
    Visualization of dust mite
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration. — Stock Photo
    Filamentous dematiaceous allergenic fungus Alternaria alternata, digital illustration.
    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.
    Light micrograph of Aspergillus sp. Fungus. — Stock Photo
    Light micrograph of Aspergillus sp. Fungus.
    Inhaling medicine. Senior woman using an inhaler with extension tube. — Stock Photo
    Inhaling medicine. Senior woman using an inhaler with extension tube.