Wildlife tourism generates critical conservation funding for gorillas, but human respiratory pathogens transmitted to gorillas have caused deaths and epidemics, requiring strict health protocols to balance conservation and welfare.
Gorilla disease welfare from tourism contact represents one of the clearest cases where conservation funding and individual animal welfare create genuine tension. Habituated gorillas are more accessible to poachers without the ranger forces that tourism funds — their individual disease risk from human contact may be outweighed by the population survival benefit of funded protection. However, this calculus requires that disease transmission risk be actively minimised, not merely acknowledged. The 7-metre rule provides meaningful protection but is frequently violated by tourists who paid significant amounts for once-in-a-lifetime experiences and underestimate the real disease risk from proximity. Mask mandates, health screening of tourists and guides, and strict enforcement of approach distance rules reduce but cannot eliminate transmission risk. The welfare cost of a respiratory disease outbreak in a gorilla family — involving fever, respiratory distress, and potentially fatal pneumonia — is severe for each affected individual and catastrophic for small family groups.