“This is the first case of rustrela virus-associated staggering disease that has been identified outside of Europe, so it is the first case identified in North America ... There have been reports of similar disease syndromes in domestic cats previously in North America but we are not sure whether or not those may have been associated with rustrela virus.” https://coloradosun.com/2024/07/18/colorado-mountain-lion-staggering-disease-first/