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Table 1 Clinical characteristics and CCR5Δ32 allelic status for the 29 H1N1pdm09 patients

From: The CCR5Δ32 allele is not a major predisposing factor for severe H1N1pdm09 infection

Flu form Disease course Number of subjects Males/females Self-reported ancestry (number) Number of CCR5Δ32 heterozygotes
Severe ARSD requiring ECMO 7 6/1 Italian (6), Spanish (1) 0
Intermediate Pulmonary disease requiring oxygen therapy 7 3/4 Italian (7) 0
Mild No complications, only oxygen administration 7 3/4 Italian (6), Chinese (1) 0
Very mild No hospitalization, no complications 8 4/4 Italian (8) 1