Alaska Man Develops Rare ‘Seal Finger’ Infection After Encountering Brown Bear in Possible Medical First

**Alaska Reports First Case of Rare ‘Seal Finger’ Infection from Brown Bear Exposure**

Alaska health authorities have issued a warning regarding the state’s first recorded instance of a rare infection known as “seal finger,” which has been linked to exposure to brown bears. The announcement was made in a bulletin from the Alaska Department of Health on February 19, 2024. This case involves a zoonotic pathogen called Mycoplasma phocimorsus, historically transmitted by seals.

Mycoplasma phocimorsus is known to cause a serious infection that primarily affects the hands and fingers, resulting in swelling and loss of mobility. If left untreated, the infection can have severe consequences, including the potential for amputations. The pathogen is known for its resistance to many common antibiotics, making it particularly challenging to diagnose and treat.

The specifics of the recent case highlight the unusual nature of this infection in the state. The patient, a healthy man in his late twenties, developed concerning symptoms after he sustained a cut while skinning a brown bear on the Alaska Peninsula. His injury occurred after his knife made contact with the bear’s mouth, possibly facilitating the transmission of the bacteria.

Initially, the man received treatment with oral antibiotics, but his condition deteriorated after five days, leading to hospitalisation due to the development of a fever. Medical professionals discovered extensive tendon damage and septic arthritis during surgical exploration. Despite initial treatments, his symptoms persisted, prompting further surgical intervention.

In a significant development, DNA sequencing ultimately identified Mycoplasma phocimorsus as the pathogen responsible for the man’s ongoing infection. Following this diagnosis, he underwent a six-week course of doxycycline, a more effective antibiotic for treating the infection. Fortunately, his condition improved, and there were no clinical signs of a relapse one month after treatment, though some mobility issues in his finger remained.

Historically, the first documented instance of Mycoplasma phocimorsus in Alaska dates back to the early 1900s, associated with seal butchering. However, the 2024 case marks a departure from this trend as it appears to be the first documented instance in the state involving exposure to brown bears without direct contact with seals. This raises important questions about the potential for brown bears to act as reservoirs for the bacteria, especially if they have scavenged infected marine mammals.

The Alaska Department of Environmental Health has been approached for further comments on this unusual case but has yet to provide a response. Health officials are keen to inform the public and healthcare providers about the symptoms and risks associated with Mycoplasma phocimorsus infections. These infections can often mimic more common soft tissue or joint issues but are typically resistant to standard beta-lactam antibiotics and vancomycin.

Experts recommend that healthcare providers consider the potential for Mycoplasma phocimorsus infections in patients exhibiting soft tissue or joint symptoms following contact with seals, bears, or even cats. Given the nature of the injury in the reported case, officials are urging hunters and others who handle wildlife to take precautions, including wearing protective gloves and ensuring that any wounds are meticulously cleaned to minimise the risk of infection.

The emergence of this case serves as a reminder of the complex interactions between wildlife and human health and underscores the importance of vigilant health practices for those engaged in activities that may expose them to zoonotic pathogens. As the understanding of such infections evolves, health officials are committed to keeping the public informed to prevent further transmission.