Scientists studying Uganda's Python Cave, a known Marburg virus hotspot, have captured extensive footage of animal and human activity. Over 8,832 hours of video recorded between February and June 2025 documented 321 encounters involving species like vultures, baboons, blue monkeys, and humans within and around the bat-filled cave.

While direct evidence of viral transmission was not captured, the observations provide a rare ecological perspective on potential zoonotic spillover events. The study highlights multiple pathways for virus jump, including direct and indirect contact, and environmental contamination.

Despite an observation station and park rules mandating a 30-meter distance from the cave mouth, researchers recorded 214 individuals from various groups approaching closely, with only one wearing a mask. This behavior is particularly concerning during periods of elevated bat viral shedding.

Marburg virus, first identified in 1967, causes severe hemorrhagic fever. Outbreaks have occurred across Africa, and the Python Cave was previously linked to a 2008 fatality. Currently, there are no approved vaccines or treatments for the deadly virus.