Case Series
Flea-Borne Typhus as a COVID-19 Mimic: A Report of Four Cases
Table 2
Demographics, clinical findings, risk factors, and treatment of patients 1–4.
| Clinical findings/treatment | Pt 1 | Pt 2 | Pt 3 | Pt 4 |
| Age (yrs), sex | 30, F | 45, M | 62, M | 27, M | Fever | Yes | Yes | Yes | Yes | Chills | Yes | No | Yes | Yes | Dyspnea | Yes | Yes | Yes | No | Headache | Yes | Yes | No | Yes | Cough | No | Yes | Yes | No | Gastrointestinal symptoms | No | Nausea | Nausea, anorexia | Nausea | Duration of illness prior to hospital presentation, days | 7 | 8 | 7 | 10 | CT of the chest | Peribroncho-vascular mixed consolidative and ground glass opacities along the lingula | Ground glass opacities with small areas of consolidation within the left lower lobe | Left upper lobe consolidative opacity with a small pleural effusion | Not performed | FBT risk factor | Dogs with fleas | Dogs with fleas | Stray cats and dogs; flea bites | None identified | Treatment | Ceftriaxone and azithromycin, then doxycycline | Azithromycin for 2-days without improvement, then doxycycline | Ceftriaxone and doxycycline | Vancomycin, ceftriaxone, acyclovir, doxycycline; narrowed to doxycycline on d3 |
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