A 41-year-old man has been hospitalized in China with what is believed to be the first ever human case of the H10N3 strain of bird flu.

According to Reuters, China’s National Health Commission [HNC] confirmed the finding with the announcement that the man was hospitalized in the city of Zhenjiang at the end of April and then tested positive for the rare virus last week.

The NHC gave no details on how it believed the man came to be infected, but said that it was not concerned that the case will lead to a larger outbreak. “This infection is an accidental cross-species transmission,” the NHC said in a statement. “The risk of large-scale transmission is low.”

The unidentified man is in a stable condition and will soon be discharged from hospital. Health authorities said they tested his close contacts and didn’t find any further cases.