| 31. | Data are accumulating that the syndrome involves a chronic viral infection.
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| 32. | Interferons are produced by the body in response to viral infections.
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| 33. | Gargling is practiced in Japan for perceived prevention of viral infection.
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| 34. | One woman, for example had hepatitis C, a viral infection.
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| 35. | Tests ruled out fungal and viral infections and autoimmune disease.
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| 36. | In terms of viral infection, that is a tiny amount.
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| 37. | Officialy, Havel was diagnosed with a viral infection on Thursday.
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| 38. | Like any organism, marine mammals are susceptible to viral infections.
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| 39. | He died of complications from a viral infection last December.
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| 40. | :Warts are caused by a viral infection through the skin.
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