Iatrogenesis

Iatrogenesis is the process of infections that occur by hospital treatment. If you were to become infected because a doctor or nurse didn't wash his or her hands after touching a previous patient, this would be considered an iatrogenic infection. If you had surgery and the wrong kidney was removed, or the wrong knee was replaced, this would be considered an iatrogenic injury. Radiation therapy and chemotherapy — necessarily aggressive for therapeutic effect – frequently produce such iatrogenic effects as hair loss, hemolytic anemia, diabetes insipidus, vomiting, nausea, brain damage, lymphedema, infertility, etc. Transmissible spongiform encephalopathy diseases can be transmitted iatrogenically by contamination of surgical equipment. Iatrogenic Creutzfeldt-Jakob disease was transmitted via human growth hormone taken from dead people. This resulted in hundreds of deaths.

References

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4923397/

https://www.sciencedirect.com/topics/neuroscience/iatrogenic-creutzfeldt-jakob-disease