The 1820 Mallorca plague was not a classic bubonic outbreak
Proceedings of the National Academy of Sciences·
- DOI
- 10.1073/pnas.2536892123
- PMID
- —
- PMCID
- —
- OpenAlex
- W7203598785
- Study type
- Journal article
- Publisher
- National Academy of Sciences
- Article type
- journal-article
- Integrity
- current
Why this research matters now
Historical reconstruction of transmission pathways contributes to scholarly debates regarding plague ecology and the biological characteristics of late pandemic waves.
Structured evidence summary
Research question
What were the underlying transmission dynamics and clinical manifestations driving the 1820 plague episode in eastern Mallorca?
Study design
Researchers applied a Bayesian epidemiological framework to analyze daily mortality tallies extracted from historical archives.
Population and setting
The analysis focused on two municipalities in eastern Mallorca, Spain, during an 1820 epidemic event.
Main findings
Statistical estimates revealed location-specific variations in reproductive numbers and infectious durations. High lethality paired with brief symptomatic windows suggests that respiratory and systemic disease forms were prominent contributors to transmission. Archival documentation excludes rodent reservoirs, favoring human parasites or direct contact as primary vectors, while also noting heightened pediatric susceptibility.
Public-health relevance
Historical reconstruction of transmission pathways contributes to scholarly debates regarding plague ecology and the biological characteristics of late pandemic waves.
Important limitations
The evaluation relies solely on retrospective mortality counts and computational modeling rather than contemporaneous clinical or microbiological verification.
GIDS interpretation
This work provides a historical classification of plague behavior using modern mathematical tools, offering contextual background for academic discussions on pandemic ecology.
Related GIDS surveillance
Literature context does not validate, explain, or change a surveillance signal. Exact and contextual relationships are shown separately.
Evidence relationships
This article has 5 auditable classifier relationships to diseases, places, topics, and study design.