The incubation period ranges from 9 to 40 days following exposure. Humans are highly susceptible to infection, with illness potentially resulting from exposure to just a few organisms. The causative bacterium operates as an obligate intracellular pathogenic parasite.
Disease Profile
BacterialQ fever
Q热
Q fever is an infectious disease caused by the bacterium Coxiella burnetii, which affects both humans and various animals including cattle, sheep, goats, and domestic pets. Though uncommon, the disease can cause significant illness in humans through exposure to infected animals.
Humans typically contract Q fever through inhalation of spore-like particles from infected animals or by direct contact with their milk, urine, feces, vaginal mucus, or semen. Tick-borne transmission occurs but is rare.
Source-backed detail is not yet available.
Source-backed detail is not yet available.
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.
Source Register
Official sources and update cadences used to construct the downloadable dataset.
AU
Australia NINDSSmonthlymicrosoft_bi
Australia
Australian national notifiable diseases surveillance dashboard.
Official sourceJP
JP NIID Weeklyweeklyweb
Japan
Japan weekly infectious disease surveillance via NIID/JIHS.
Official sourceUS
US CDC NNDSSweeklyapi
United States
CDC National Notifiable Diseases Surveillance System provisional data.
Official sourceSuggested presentation pattern: cite the data version and coverage window when exporting charts or tables for publication.