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1
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ragweed
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Europe
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Ragweed is less prevalent and not a major allergen in Europe compared to North America.
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6
|
|
2
|
ragweed
|
Canada
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Ragweed is a common cause of hay fever and allergies in late summer and early fall in Canada.
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4
|
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3
|
ragweed
|
United States
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Ragweed is a common cause of hay fever and allergies in late summer and early fall in North America, particularly in the United States.
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4
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4
|
ragweed
|
Middle East
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Ragweed is less common and less associated with allergies in the Middle East compared to North America.
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3
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|
5
|
ragweed
|
France
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Ragweed is not a common cause of allergies and not part of festivals or traditional crafts in France.
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2
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6
|
ragweed
|
Italy
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Ragweed is not a common allergy cause in Europe, including Italy.
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1
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