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Ichikawa T, Qiu Y, Ando S, Takeuchi Y, Nagasaka A. The case of Mediterranean spotted fever of the traveler returned from Zambia. Ticks Tick Borne Dis 2024; 15:102347. [PMID: 38714072 DOI: 10.1016/j.ttbdis.2024.102347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/06/2024] [Accepted: 04/23/2024] [Indexed: 05/09/2024]
Abstract
We report the case of a traveler who returned from Zambia and was diagnosed with Mediterranean spotted fever (MSF), an infectious disease caused by Rickettsia conorii conorii. The patient presented to Sapporo City General Hospital with symptoms of fever, malaise, headache, and rash. The pathogen was identified by Polymerase Chain Reaction assays and subsequent analyses. The patient improved with 10-day treatment of oral doxycycline. Although some cases of MSF have been reported in sub-Saharan Africa, none have been reported in Zambia. Rhipicephalus sanguineus sensu lato, the vector of the Rickettsia conorii conorii, has been found in various areas of Zambia. Our case report highlights the potential threat of Mediterranean spotted fever in urban areas of Zambia.
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Affiliation(s)
- Takahiro Ichikawa
- Sapporo City General Hospital Department of Infectious Diseases, 13-1-1, Kita-11-jonishi, Chuo-ku, Sapporo 060-8604, Japan.
| | - Yongjin Qiu
- Laboratory of Parasitology, Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo: Kita 8, Nishi 5, Kita-ku, Sapporo 060-0808, Japan
| | - Shuji Ando
- National Institute of Infectious Diseases, 1-23-1, Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yuto Takeuchi
- Sapporo City General Hospital Department of Infectious Diseases, 13-1-1, Kita-11-jonishi, Chuo-ku, Sapporo 060-8604, Japan
| | - Atsushi Nagasaka
- Sapporo City General Hospital Department of Infectious Diseases, 13-1-1, Kita-11-jonishi, Chuo-ku, Sapporo 060-8604, Japan
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Hosseininasab A, MoradKasani S, Mostafavi E, Baseri N, Sadeghi M, Esmaeili S. Rickettsia conorii subsp. israelensis infection in a pediatric patient presenting skin rash and abdominal pain: a case report from Southeast Iran. BMC Infect Dis 2024; 24:114. [PMID: 38254000 PMCID: PMC10804630 DOI: 10.1186/s12879-024-09002-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND The healthcare system in Iran appears to overlook Mediterranean spotted fever (MSF) as an endemic disease, particularly in pediatric cases, indicating the need for greater attention and awareness. CASE PRESENTATION A six-year-old patient with fever, abdominal pain, headache, skin rashes, diarrhea, vomiting, and black eschar (tache noire) from southeast Iran was identified as a rickettsiosis caused by Rickettsia conorii subsp. israelensis through clinical and laboratory assessments, including IFA and real-time PCR. The patient was successfully treated with doxycycline. CONCLUSIONS Symptoms like rash, edema, eschar, and abdominal pain may indicate the possibility of MSF during the assessment of acute febrile illness, IFA and real-time PCR are the primary diagnostic methods for this disease.
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Affiliation(s)
- Ali Hosseininasab
- Research Center of Tropical and Infectious Diseases, Afzalipour Hospital, Kerman University of Medical Sciences, Kerman, Iran
| | - Safoura MoradKasani
- National Reference Laboratory for Plague, Tularemia and Q Fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Kabudar Ahang, Akanlu, Hamadan, Iran
| | - Ehsan Mostafavi
- National Reference Laboratory for Plague, Tularemia and Q Fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Kabudar Ahang, Akanlu, Hamadan, Iran
- Department of Epidemiology and Biostatics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
| | - Neda Baseri
- National Reference Laboratory for Plague, Tularemia and Q Fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Kabudar Ahang, Akanlu, Hamadan, Iran
- Department of Epidemiology and Biostatics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
- , Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Iran
| | - Maryam Sadeghi
- Research Center of Tropical and Infectious Diseases, Afzalipour Hospital, Kerman University of Medical Sciences, Kerman, Iran
| | - Saber Esmaeili
- National Reference Laboratory for Plague, Tularemia and Q Fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Kabudar Ahang, Akanlu, Hamadan, Iran.
- Department of Epidemiology and Biostatics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran.
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Agahan ALD, Torres J, Fuentes-Páez G, Martínez-Osorio H, Orduña A, Calonge M. Intraocular inflammation as the main manifestation of Rickettsia conorii infection. Clin Ophthalmol 2011; 5:1401-7. [PMID: 22034560 PMCID: PMC3198414 DOI: 10.2147/opth.s21257] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective To report the clinical features and management of seven cases of intraocular inflammation caused by Rickettsia infection and review published literature. Methods Rickettsia conorii or Rickettsia spp. infection was diagnosed based on the following criteria: (1) positive serology according to the European Guidelines, (2) titer normalization after specific treatment, and (3) complete resolution of ophthalmic disease and accompanying symptoms after antibiotic therapy. Results Seven patients were referred for uveitis of unknown etiology. All came from regions where Mediterranean spotted fever is prevalent. One patient met the European guidelines criteria for Rickettsia spp. infection, while the other six cases met the criteria for R. conorii infection. The main symptoms were visual loss, floaters, eye redness, photophobia, and ocular pain. Predominant ophthalmic signs included vasculitis, choroiditis, vitritis, and macular edema. All patients required antibiotic treatment that resulted in the remission of the infection. Doxycycline was the first choice and the only antibiotic used to treat four patients. One patient needed ciprofloxacin as a second antibiotic after not responding to doxycycline. Two patients had doxycycline as a second antibiotic after not responding primarily to sulfonamides (which had been given after 2–3 days of doxycycline gastric intolerance); one of these patients needed ciprofloxacin as a third antibiotic. Conclusion Intraocular inflammation can occur as the main manifestation of Rickettsia conorii or Rickettsia spp. infection. It should be considered as a differential diagnosis for uveitis especially for patients living in countries where this infection is endemic in the world. Antibiotic treatment remains effective in the management of Rickettsia infection.
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Affiliation(s)
- Archimedes L D Agahan
- Ocular Immunology and Uveitis Unit, Institute of Applied Ophthalmobiology (IOBA), University of Valladolid, Valladolid, Spain
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Hendershot EF, Sexton DJ. Scrub typhus and rickettsial diseases in international travelers: a review. Curr Infect Dis Rep 2010; 11:66-72. [PMID: 19094827 DOI: 10.1007/s11908-009-0010-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Physicians caring for febrile returned travelers face the difficult task of recognizing the typical and atypical features of more than 16 known rickettsial diseases and separating these diseases from potentially serious nonrickettsial diseases. Currently available diagnostic tools are inadequate for timely diagnosis. This review summarizes the English-language literature concerning imported rickettsial diseases in international travelers and describes important clinical principles in diagnosis and treatment of these illnesses. -Travelers with imported rickettsial disease often become sick before or within a few days of return from an endemic region. Illness that begins more than 18 days after return is unlikely to be rickettsial in origin. The absence of a skin rash or exposure to a vector should not dissuade clinicians from considering the possibility of a rickettsial disease in a returned traveler. Finally, if empiric therapy does not result in defervescence within 48 hours, an alternative nonrickettsial illness should be strongly considered.
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Affiliation(s)
- Edward F Hendershot
- Division of Infectious Diseases, Box 3281, Duke University Medical Center, Durham, NC 27710, USA.
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Rutherford JS, Macaluso KR, Smith N, Zaki SR, Paddock CD, Davis J, Peterson N, Azad AF, Rosenberg R. Fatal spotted fever rickettsiosis, Kenya. Emerg Infect Dis 2004; 10:910-3. [PMID: 15200829 PMCID: PMC3323220 DOI: 10.3201/eid1005.030537] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We report a fatal case of rickettsiosis in a woman from the United States living in Kenya, who had a history of tick exposure. Immunohistochemical staining of skin, kidney, and liver demonstrated spotted fever group rickettsiae. The clinical findings, severity, and fatal outcome are most consistent with Rickettsia conorii infection.
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Jensenius M, Fournier PE, Raoult D. Tick-borne rickettsioses in international travellers. Int J Infect Dis 2004; 8:139-46. [PMID: 15109588 DOI: 10.1016/j.ijid.2003.06.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2003] [Revised: 06/24/2003] [Accepted: 06/25/2003] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Tick-borne rickettsioses are of emerging importance in today's travel medicine but have until recently received little attention. We describe the current knowledge of tick-borne rickettsioses as they relate to international travel, their microbiological diagnosis, treatment, possible prevention, and future prospects. METHODS Literature-based review and personal observations. RESULTS During the last decade, some 400 cases of tick-borne rickettsioses have been reported in international travellers, the vast majority being African tick bite fever caused by Rickettsia africae and Mediterranean spotted fever caused by Rickettsia conorii. Only a minority of infected travellers can recall a preceding tick bite. Most patients present with a mild-to-moderately severe flu-like illness typically accompanied by a cutaneous rash and an inoculation eschar at the site of the tick bite, but potentially life-threatening disease with disseminated vaculitis is occasionally seen. Definite microbiological confirmation of tick-borne rickettsioses by isolation or antigen detection is only available at reference laboratories and diagnosis must in most cases rely on clinical and epidemiological data supported by serology. Doxycycline is the recommended treatment for tick-borne rickettsioses and prevention is based on personal protective measures against tick bites when travelling in endemic areas. CONCLUSION Tick-borne rickettsiosis should be suspected in febrile returnees from endemic areas, especially in cases with skin eruptions. Travellers to endemic areas should be encouraged to use personal protective measures against tick bites.
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Affiliation(s)
- Mogens Jensenius
- Department of Internal Medicine, Aker University Hospital, Oslo, Norway.
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Corazza M, Bertelli G, Altieri E, Strumia R. Mediterranean spotted fever: a case report. J Eur Acad Dermatol Venereol 1999. [DOI: 10.1111/j.1468-3083.1999.tb00892.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Kemper CA, Deresinski S. Mediterranean spotted fever in travelers from the United States. J Travel Med 1998; 5:158. [PMID: 9882161 DOI: 10.1111/j.1708-8305.1998.tb00494.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Mediterranean spotted fever, a disease caused by Rickettsia conorii, is a well-described syndrome among travelers returning from Africa.1 In the present issue of Journal of Travel Medicine2 a case of Rickettsia conorii disease is presented and discussed in context with recently described African tick-bite fever caused by Rickettsia africae. We report the clinical presentation and successful treatment of a traveler who likely had African tick-bite fever.
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Affiliation(s)
- CD Ericsson
- Professor of Medicine, Head, Clinical Infectious Diseases, and Director, Travel Medicine Clinic, Department of Medicine, Division of Infectious Diseases, University of Texas Houston Medical School, Houston, Texas
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