What constitutes deliberate indifference to inmate health?

A prison official shows deliberate indifference to such a need if he "knows of and disregards an excessive risk to inmate health." Peralta, 744 F.3d at 1082 (citing Farmer v. Brennan, 511 U.S. 825, 837 (1994). This "requires more than ordinary lack of due care." Colwell, 763 F.3d at 1066 (citing Farmer, 511 U.S. at 835). Instead, the prison official must "be aware of facts from which the inference could be drawn that a substantial risk of serious harm exists, and he must also draw the inference." Colwell,

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