Prion diseases are rare, fatal neurodegenerative disorders caused by abnormal, misfolded proteins called prions. These prions accumulate in the brain, leading to irreversible damage. They primarily affect humans, manifesting as Creutzfeldt-Jakob Disease (CJD), but also occur in animals.
Prion diseases were first recognized through conditions like Scrapie in sheep and Kuru among the Fore people of Papua New Guinea. The unique transmissible nature of Kuru, linked to ritualistic cannibalism, was a pivotal discovery. In the 1980s, Stanley Prusiner proposed the revolutionary concept of 'prions' (proteinaceous infectious particles) as the causative agent, for which he received the Nobel Prize.
Prion diseases can occur spontaneously (sporadic forms), be inherited (familial forms), or be acquired through exposure to contaminated tissue. Acquired forms include iatrogenic transmission (e.g., contaminated surgical instruments, dura mater grafts) and dietary routes (e.g., consumption of BSE-infected beef products, or Kuru via ritualistic cannibalism). They are not spread through casual contact, coughing, or sneezing.
Période de Contagiosité : Varies by disease
2 countries with reported activity. Updated from real-time surveillance data.
Renseignements en temps réel issus de la surveillance sanitaire mondiale et de la surveillance par IA
Sources de données : BEACON, ProMED, OMS, CDC et plus de 50 agences nationales de santé
✓ Données en direct mises à jour en temps réel depuis les sources de santé mondiales
Chronic wasting disease continues to spread through Louisiana's deer populations, with 55 confirmed cases now detected across four parishes since initial identification in 2022. The recent detection in Ouachita Parish prompted emergency expansion of control areas and implementation of feeding restrictions to limit environmental transmission of this invariably fatal prion disease. While current prevalence remains substantially lower than heavily affected states, the geographic expansion pattern and environmental persistence of prions indicate ongoing risk of establishment in Louisiana's cervid populations. Although there is no confirmed risk to humans, the disease's zoonotic potential and environmental persistence remain under investigation, prompting caution among hunters and ongoing research into transmission pathways.
Source: BEACON - View Full Report
Seeing what my mom went through, I do not want anyone else to have to experience that, nor their family members. While no one is certain, experts think that another always-fatal prion disease -- this one currently known to occur only in cervids such as deer, moose, and elk -- may behave the same wa... Source: CIDRAP - Read Full Article
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Informations fiables provenant des principales organisations de santé
Directives officielles des Centers for Disease Control and Prevention des États-Unis
Voir les Ressources du CDC →Surveillance mondiale des maladies et directives de l'Organisation Mondiale de la Santé
Voir les Ressources de l'OMS →Les informations sur les maladies sur Virus Watcher sont révisées par notre Épidémiologiste en Chef, ancien analyste principal du CDC pour les prévisions FluSight. Les données épidémiques sont agrégées à partir de sources vérifiées notamment BEACON, ProMED, OMS, CDC et plus de 50 agences nationales de santé. Ces informations sont à des fins éducatives et ne doivent pas remplacer les conseils médicaux professionnels.
Dernière révision : 2026-06-29
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