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Previous Volume 359:1074-1076 September 4, 2008 Number 10 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: The incidence of influenza A (H1N1) viruses that carry the neuraminidase H274Y mutation has increased by 30% this year in the Netherlands.¹ Influenza A (H1N1) viruses that carry this mutation are resistant to oseltamivir but remain sensitive to zanamivir.² However, these mutant viruses are considered to have attenuated pathogenicity.^3,4

A 67-year-old man who had received a diagnosis of chronic lymphocytic leukemia 3 years earlier was admitted to the hospital because of dyspnea, dry cough, and fever. One week before admission, he had received a course of cyclophosphamide, vincristine, and prednisolone chemotherapy. At admission, his white-cell count was . . . [Full Text of this Article]

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