The available sources do not provide any information about a discount for Yervoy for all doses.

The first source [1] provides information on the patent status of Yervoy, an immunotherapy drug used to treat melanoma. It does not mention any discounts available for the drug.

The second source [2] is the FDA label for Yervoy, which provides detailed information on the drug's usage, dosage, and administration. However, it does not mention any discounts available for the drug.

The third source [3] is the package insert for Yervoy, which provides information on the drug's clinical pharmacology, indications, and dosage. However, it also does not mention any discounts available for the drug.

Therefore, based on the provided sources, it can be concluded that there is no information available regarding a discount for Yervoy for all doses. It is recommended to consult with a healthcare provider or a pharmacist for more information on the pricing and availability of Yervoy.

Sources:
[1] https://www.drugpatentwatch.com/p/biologics/tradename/YERVOY
[2] https://www.accessdata.fda.gov/drugsatfda_docs/label/2015/125377s073lbl.pdf
[3] https://packageinserts.bms.com/pi/pi_yervoy.pdf