What did the court decide in Estelle v. Gamble?
Answered for: US
We therefore conclude that deliberate indifference to serious medical needs of prisoners constitutes the "unnecessary and wanton infliction of pain,"
The Court set the deliberate-indifference standard for prisoner medical claims and separately restated that a pro se complaint is to be liberally construed.
This answer is true in US and nowhere else on this site. Another jurisdiction is another answer, or an honest gap: see what has been read for US.