Chandigarh, April 9: A case has challenged established medical understanding, a 58-year-old woman in Greece successfully recovered after sneezing out one-inch-long larvae that had infested her sinuses. The incident, recently documented by medical professionals, involved the Oestrus ovis—commonly known as the sheep bot fly—which typically completes its life cycle only within livestock.
The woman first encountered the parasites in September while working near grazing sheep, where she was swarmed by flies. Following several weeks of facial pain and persistent coughing, she expelled a live larva during a sneeze on October 15. Subsequent surgical intervention at a specialized clinic led to the removal of 10 additional larvae and one pupa from her maxillary sinus.
Medical experts stated that the development of these parasites into the pupal stage within a human is considered “biologically implausible” under normal circumstances. Physicians noted that the woman’s severely deviated septum likely created a unique, sheltered environment that allowed the larvae to survive and mature beyond their typical first stage. “The combination of high larval numbers and anatomical deviation impeded the normal removal of the parasites,” a specialist affirmed in the case report.
While sheep bot fly infections in humans are exceptionally rare and usually limited to the eyes, this specific instance suggests that certain physical conditions can allow the parasites to thrive. The patient has since made a full recovery following the procedure and the use of nasal decongestants.
