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Disease Profile

Bacterial

Spotted fever rickettsiosis

斑点热立克次体病

Spotted fever rickettsiosis is a group of tick-borne bacterial infections caused by Rickettsia species, characterized by cutaneous manifestations including petechial or maculopapular rashes. The disease group encompasses several distinct clinical entities, including Rocky Mountain spotted fever, Rickettsia parkeri rickettsiosis, Pacific Coast tick fever, and rickettsialpox. While typhus is also caused by Rickettsia bacteria, it represents a separate clinical classification from spotted fevers despite shared genus classification.

Definition

Spotted fever rickettsiosis is a type of tick-borne disease caused by bacteria of the genus Rickettsia. The term encompasses several specific infections, including Rocky Mountain spotted fever, Rickettsia parkeri rickettsiosis, Pacific Coast tick fever, and rickettsialpox. While typhus is also caused by Rickettsia bacteria, it represents a distinct clinical entity from spotted fevers. The disease presents primarily with skin manifestations and systemic symptoms following tick exposure.

Clinical features

The disease presents on the skin with characteristic petechial or maculopapular eruptions. Source-backed clinical detail regarding disease severity, typical disease course, and specific complications is not yet available from the provided sources.

Epidemiology

The phrase 'spotted fever' originated in Spain during the 17th century and was historically loosely applied in England to typhus or any fever involving petechial eruptions. During the 17th and 18th centuries, it was thought to be related to and herald of the bubonic plague, particularly during the Great Plague of 1665. Source-backed detail regarding current geographic distribution, contemporary outbreak patterns, reservoir ecology, and surveillance burden is not yet available.

Transmission

Spotted fever rickettsiosis is transmitted through tick bites. When a tick latches onto a host, removal within 2 hours is critical for preventing pathogen transmission. If the tick remains attached and unnoticed, approximately 10 hours of attachment are required for the pathogen to be transmitted to the human host.

Risk groups

Source-backed detail regarding specific high-risk populations is not yet available.

Prevention

Source-backed detail regarding specific public health measures or exposure control interventions is not yet available.

Surveillance note

Source-backed detail regarding disease monitoring context or surveillance interpretation is not yet available.

Coding Register
ICD-10
ICD-11
Key Statistics
Total cases
4K
Peak month
2008-08
Coverage
2 reporting countries · 2012-09-14 → 2010-01-02

Figure 1 | Full historical trajectories across all reporting countries.

Figure 2 | Year-over-year monthly comparison for seasonality and structural shifts.

Dataset Archive

Supplementary Data | Multi-country disease dataset

Machine-readable multi-country disease dataset (JSON/CSV) with source metadata.

Rows
913
Data Version
2026-05-09
Coverage
Included metadata
Source links, scope, cadence

Source Register

Official sources and update cadences used to construct the downloadable dataset.

JP
JP NIID Weeklyweeklyweb

Japan

Japan weekly infectious disease surveillance via NIID/JIHS.

Official source
US
US CDC NNDSSweeklyapi

United States

CDC National Notifiable Diseases Surveillance System provisional data.

Official source
Suggested presentation pattern: cite the data version and coverage window when exporting charts or tables for publication.