Detailed Instructions: In this task, you are given a passage which has a question and the context. You have to generate an answer to the question based on the information present in the context.
Q: Context: Host genetic factors are thought to modulated the severity of disease caused by infection with the 2009 H1N1 pandemic influenza virus (H1N1pdm09). The human CCR5 gene encodes a cytokine receptor important for cell-mediated immune response against H1N1pdm09. A 32-bp polymorphic deletion in the coding sequence of CCR5, the so-called CCR532 allele, segregates in populations of European ancestry with a frequency of 8-15%. A high proportion of CCR532 heterozygotes was reported in a sample of white Canadian critically-ill H1N1pdm09 infected subjects, suggesting an association with disease severity.', 'We recruited 29 H1N1pdm09 infected subjects from Southern Europe (mostly Italians) with a wide clinical spectrum of disease symptoms; the sample included 7 subjects who developed acute respiratory distress syndrome requiring extracorporeal membrane oxygenation. The CCR532 variant was genotyped in all subjects.', 'The CCR532 allele was found in one single subject, who developed a very mild form and was not hospitalized.\Question: Is the CCR532 allele a major predisposing factor for severe H1N1pdm09 infection?
A:
The CCR532 allele was not found to be associated with the risk of H1N1pdm09 infection or with a severe disease course.