Stan got sick from pneumonia and ended up in the hospital, so Cartman, Kenny and Kyle went to visit him

Stan: coughing with a oxygen tube up his nose "Hey guys" laying in the bed with an IV in his hand. Cartman, Kenny and Kyle look at him worried

Kyle: "how bad is it bro! You look pale!" Kyle asked worried sick bout his best friend

Kenny: smiles at stan as he sat near him looking at the IV interested