Conclusion
Salvage therapy describes the treatment given after a condition has not responded to the initial and usual treatment. It can be used on any condition but is more common when treating HIV and cancer. Salvage therapy tends to be more aggressive than standard treatments and may also produce more side effects. If one form of salvage therapy is not effective, another may be prescribed.
References;
[1] https://www.hopkinsmedicine.org/health/conditions-and-diseases/end-stage-renal-failure
[2] https://www.nhs.uk/conditions/hiv-and-aids/
[3] https://www.cancer.gov/about-cancer/understanding/what-is-cancer
[4] https://www.cancer.org/treatment/treatments-and-side-effects/treatment-types/chemotherapy.html
[5] https://www.webmd.com/cancer/lymphoma/lymphoma-cancer
[6] https://www.who.int/health-topics/coronavirus
[7] https://psychiatry.org/patients-families/depression/what-is-depression