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    Woman blowing nose on tissue. — Stock Photo
    Woman blowing nose on tissue.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Senior woman inhaling medicine from asthma pump. — Stock Photo
    Senior woman inhaling medicine from asthma pump.
    Cropped shot of woman using inhaler device. — Stock Photo
    Cropped shot of woman using inhaler device.
    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
    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
    Little girl wearing face mask ready for a bicycle ride — Stock Photo
    Little girl wearing face mask ready for a bicycle ride
    France, young boy in the bathroom. — Stock Photo
    France, young boy in the bathroom.
    Mature woman blowing nose on tissue. — Stock Photo
    Mature woman blowing nose on tissue.
    Alternaria fungi on white background, digital illustration. — Stock Photo
    Alternaria fungi on white background, digital illustration.
    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.
    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.
    Asthma inhaler against white background. — Stock Photo
    Asthma inhaler against white background.
    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.
    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.
    Abstract male body with sore throat on blue background, conceptual digital illustration. — Stock Photo
    Abstract male body with sore throat on blue background, conceptual digital illustration.
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    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
    Blond boy, wearing a respirator and showing one finger — Stock Photo
    Blond boy, wearing a respirator and showing one finger
    Trichophyton fungi on black background, digital illustration. — Stock Photo
    Trichophyton fungi on black background, digital illustration.
    Female patient undergoing patch test in allergy clinic. — Stock Photo
    Female patient undergoing patch test in allergy clinic.
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    Woman across the street with a mask and sunglasses — Stock Photo
    Woman across the street with a mask and sunglasses
    Man using inhaler for asthma — Stock Photo
    Man using inhaler for asthma
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Pink colored digital illustration of parasitic dust mites. — Stock Photo
    Pink colored digital illustration of parasitic dust mites.
    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.
    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.
    Stachybotrys toxic mould fruiting structure with spores, digital illustration. — Stock Photo
    Stachybotrys toxic mould fruiting structure with spores, 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.
    Stachybotrys toxic mould fruiting structure with spores, digital illustration. — Stock Photo
    Stachybotrys toxic mould fruiting structure with spores, digital illustration.
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19 and using a smartphone. — Stock Photo
    Senior Caucasian man out and about in the city streets during the day, wearing a face mask against coronavirus, covid 19 and using a smartphone.
    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.
    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.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    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.
    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.
    Side view of a mixed race woman with dark hair out and about in the city streets during the day, wearing sunglasses and a face mask against air pollution and coronavirus, sitting on steps using a smartphone — Stock Photo
    Side view of a mixed race woman with dark hair out and about in the city streets during the day, wearing sunglasses and a face mask against air pollution and coronavirus, sitting on steps using a smartphone
    Man wearing anti virus masks waving to his friends — Stock Photo
    Man wearing anti virus masks waving to his friends
    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.
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration. — Stock Photo
    Toxic mould spores of Stachybotrys chartarum fungus, 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.
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    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, looking through the window. — 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, looking through the window.
    Mature woman blowing nose on tissue. — Stock Photo
    Mature woman blowing nose on tissue.
    Various allergenic food in bowls, still life. — Stock Photo
    Various allergenic food in bowls, still life.
    Alternaria fungi on white background, digital illustration. — Stock Photo
    Alternaria fungi on white background, digital illustration.
    3d illustration of variety of different pollen grains. — Stock Photo
    3d illustration of variety of different pollen grains.
    Man with beard wearing face mask — Stock Photo
    Man with beard wearing face mask
    Spring flowers representing healthy human lungs, conceptual studio shot. — Stock Photo
    Spring flowers representing healthy human lungs, conceptual studio shot.
    Hands of doctor performing allergy skin prick test on little boy arm. — Stock Photo
    Hands of doctor performing allergy skin prick test on little boy arm.
    Alternaria fungi on black background, digital illustration. — Stock Photo
    Alternaria fungi on black background, digital illustration.
    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.
    Portrait of boy blowing nose in field — Stock Photo
    Portrait of boy blowing nose in field