Patients with a complicated clinical course.

Patients with a complicated clinical course.</p

Spatial distribution of cases of rickettsial infections hospitalised at Cairns Hospital during the study period.

Note the location of each case is based on the residential address of the patient, not necessarily the location of acquisition, which was frequently impossible to determine in this retrospective study. The map was created using constructed using mapping software (MapInfo version 15.02, Connecticut, USA) using data provided by the State of Queensland (QSpatial). Queensland Place Names—State of Queensland (Department of Natural Resources, Mines and Energy) 2019, available under Creative Commons Attribution 4.0 International licence https://creativecommons.org/licenses/by/4.0/. ‘Coastline and state border–Queensland - State of Queensland (Department of Natural Resources, Mines and Energy) 2019, available under Creative Commons Attribution 4.0 International licence https://creativecommons.org/licenses/by/4.0/. Note Erub Island is also known as Darnley Island.</p

Ability of variables to predict adult patients’ subsequent requirement for Intensive Care Unit admission.

Ability of variables to predict adult patients’ subsequent requirement for Intensive Care Unit admission.</p

Ability of the qSOFA and NEWS2 scores on admission to predict subsequent death or specific organ dysfunction in adults.

Ability of the qSOFA and NEWS2 scores on admission to predict subsequent death or specific organ dysfunction in adults.</p

The epidemiology and clinical features of rickettsial diseases in North Queensland, Australia: Implications for patient identification and management - Fig 2

A–The total number of patients with rickettsial infection hospitalized at Cairns Hospital during the study period. B–The annual incidence of rickettsial infections in the Far North Queensland population. Determined using all requests for rickettsial serology from the public health system (positive cases defined using a titre of ≥ 256).</p

Characteristics and laboratory/radiology findings in ICU compared to non-ICU patients with a rickettsial infection.

Characteristics and laboratory/radiology findings in ICU compared to non-ICU patients with a rickettsial infection.</p

Clinical findings in patients with rickettsial infections at presentation.

Clinical findings in patients with rickettsial infections at presentation.</p

The epidemiology and clinical features of rickettsial diseases in North Queensland, Australia: Implications for patient identification and management - Fig 4

A–Macular petechial rash of the palms in a patient with SFG infection, B–Digital ischemia in a patient with SFG infection; this patient later required digital amputation, C–CXR demonstrating bilateral patchy non-confluent alveolar opacification in a patient with scrub typhus, D–CXR demonstrating right middle and lower lobe pneumonia and early left lower lobe consolidation in a patient with severe SFG infection in ICU. (Panels B and D have been published previously (10)).</p

The patients’ laboratory findings at presentation.

The patients’ laboratory findings at presentation.</p

Data collection.

Data collection.</p