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Asynchronous onset of clinical disease in BSE-infected macaques
Judith Montag1, Walter Schulz-Schaeffer, Annette Schrod
1German Primate Center, Göttingen, Germany.
Abstract:
To estimate the effect of the variability of prion disease onset on primary bovine spongiform encephalopathy transmission to humans, we studied 6 cynomolgus macaques. The preclinical incubation period was significantly prolonged in 2 animals, implying that onset of variant Creutzfeldt-Jacob disease in humans could be more diverse than previously expected.
Insights
Prion disease onset variability may impact bovine spongiform encephalopathy transmission to humans. Studies in macaques suggest variant Creutzfeldt-Jacob disease onset in humans could be more diverse than previously thought.
Area of Science:
- Neuroscience
- Infectious Diseases
- Veterinary Medicine
Background:
- Bovine spongiform encephalopathy (BSE) is a fatal neurodegenerative disease in cattle.
- Human transmission of BSE can cause variant Creutzfeldt-Jacob disease (vCJD).
- Understanding prion disease transmission is crucial for public health.
Purpose of the Study:
- To investigate the impact of prion disease onset variability on BSE transmission to humans.
- To assess the potential diversity of vCJD onset in the human population.
Main Methods:
- Studied 6 cynomolgus macaques to model prion disease.
- Monitored preclinical incubation periods following potential BSE exposure.
Main Results:
- A significant prolongation of the preclinical incubation period was observed in 2 of the macaques.
- This variability suggests a wider range of onset times for vCJD.
Conclusions:
- Prion disease onset variability has implications for BSE transmission dynamics.
- Human vCJD onset may be more diverse than previously anticipated, requiring further investigation.
