On: Multiple sclerosis has a common viral culprit, ope...

[ramraj07]

Fun fact, Tysabri was withdrawn from the market when some cases of a rare cancer were reported. It was introduced back only after lobbying by patient groups who insisted they’d take the small risk for the amazing QOL improvement from this drug.

[doctor_eval → ramraj07]

Do you mean PML? That’s not a cancer, but a viral infection.