This study aims to investigate the presence of the amphibian chytrid fungi Batrachochytrium dendrobatidis (Bd) and Batrachochytrium salamandrivorans (Bsal) in the Hoang Lien Range, northwest Vietnam as well as any patterns in Bd infection in space, time and host species over a five-year sampling period. This study also aims to investigate the presence of Bsal in the Hoang Lien Range.