A 61-year-old man underwent a routine kidney transplant expecting a fresh start—yet just two months later, he found himself fighting for his life. What should have been a life-saving procedure turned into a medical emergency caused by a parasite no one had anticipated.
A Mysterious Decline Post-Surgery
Two months after his transplant, the patient rushed to the hospital, experiencing alarming symptoms: severe fatigue, vomiting, unquenchable thirst, and excessive urination. His condition deteriorated rapidly—oxygen levels dropped, fluids built up in his lungs, and doctors had to place him on a feeding tube. As his symptoms intensified, he was moved to intensive care. Physicians at Massachusetts General Hospital faced a difficult puzzle: the man was on powerful immunosuppressants, making him vulnerable to a wide range of infections.
Crucial Clues Point to an Unusual Culprit
As reported by TOI, Dr. Camille Kotton, Clinical Director of the Transplant and Immunocompromised Host Infectious Diseases division at Mass General, spearheaded the diagnostic search. Initially, she ruled out common viral infections, since the patient was already on preventive antivirals. However, two concerning signs emerged: a spike in eosinophils—white blood cells often linked to parasitic infections—and a reddish-purple rash on the man’s abdomen. These clues shifted her focus toward Strongyloides, a parasitic roundworm that can silently infect the gastrointestinal tract and turn fatal in immunocompromised patients.
Tracing the Infection to the Donor
To confirm her suspicions, Dr. Kotton contacted the organ-procurement organization. She discovered that the kidney donor had lived in the Caribbean, where Strongyloides is common. Although the donor had not been screened for the parasite at the time of organ recovery, stored blood samples later tested positive for Strongyloides antibodies. Meanwhile, pre-transplant tests showed the recipient was parasite-free, confirming the infection had been transmitted through the donor organ.
Diagnosis and Treatment: A Delicate Battle
Further tests revealed worm larvae in the patient’s lungs and stool. The medical team quickly began treatment with ivermectin, a deworming medication approved for oral use in humans. However, because the patient was too ill to take medication by mouth, doctors obtained special FDA approval to administer the drug subcutaneously. Slowly, the patient began to respond and his condition improved.
A Second Victim and a Wake-Up Call
Shockingly, the recipient of the donor’s other kidney also became critically ill. After comparing cases, doctors confirmed the same parasitic infection in the second patient. Fortunately, both individuals recovered following prompt diagnosis and treatment.
New Guidelines to Prevent Future Cases
This alarming case prompted the United Network for Organ Sharing (UNOS) to update its national transplant screening guidelines. It now recommends universal Strongyloides testing for all donors from high-risk regions, such as the Caribbean and parts of Southeast Asia and Africa.
A Lesson in Vigilance Beyond the Operating Room
This case underscores a vital truth: while organ transplants can be life-saving, they are not without risk. Thorough screening and post-transplant monitoring are critical, especially when donors come from regions with endemic infections. In medicine, as this story shows, every detail matters—even the unseen ones.