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  • Article
  • Open Access
2,380 Views
16 Pages

Rickettsioses Seropositivity in Malaysia: A Six-Year Trend, 2016–2021

  • Bee Yong Tay,
  • Fashihah Sherina Abdul Hadi Sabri,
  • Zamtira Seman,
  • Norlela Othman,
  • Haida Subakir,
  • Zahrul Laili Abd Hadi,
  • Adilahtul Bushro Zaini,
  • Norli Anida Abdullah,
  • Nur Anisah Mohamed and
  • Siti Roszilawati Ramli
  • + 1 author

Background: Rickettsioses are diseases caused by obligate intracellular non-motile coccobacilli transmitted via arthropods. The most common rickettsioses are scrub typhus (ST), typhus group rickettsioses (TGR), and spotted fever group rickettsioses (...

(This article belongs to the Topic Vector-Borne Disease Spatial Epidemiology, Disease Ecology, and Zoonoses)
  • Review
  • Open Access
20 Citations
7,576 Views
16 Pages

A Review of Rickettsial Diseases Other Than Scrub Typhus in India

  • Sivanantham Krishnamoorthi,
  • Shriya Goel,
  • Jasleen Kaur,
  • Kamlesh Bisht and
  • Manisha Biswal

Rickettsial diseases (RD) are widely reported all over the world. Scrub typhus (ST) is a major tropical infection which is well documented all over India. Therefore, the index of suspicion of scrub typhus is high among physicians with regard to patie...

(This article belongs to the Special Issue The Past and Present Threat of Rickettsial Diseases (Volume II))
  • Review
  • Open Access
12 Citations
6,842 Views
19 Pages

The Re-Emergence and Emergence of Vector-Borne Rickettsioses in Taiwan

  • Nicholas T. Minahan,
  • Chien-Chung Chao and
  • Kun-Hsien Tsai

Rickettsial diseases, particularly vector-borne rickettsioses (VBR), have a long history in Taiwan, with studies on scrub typhus and murine typhus dating back over a century. The climatic and geographic diversity of Taiwan’s main island and its offsh...

(This article belongs to the Special Issue The Past and Present Threat of Rickettsial Diseases)
  • Case Report
  • Open Access
1 Citations
784 Views
10 Pages

The Paucity of Typical Pathology: An Autopsy Series of Typhus Group Rickettsiosis-Associated Hemophagocytic Lymphohistiocytosis

  • Joshua Klinnert,
  • Vasily Ovechko,
  • Michelle M. Felicella,
  • April McDougal,
  • Sarah E. Muir,
  • Patricia A. Crocquet-Valdes,
  • David H. Walker and
  • Lucas S. Blanton

19 February 2026

Murine typhus (also called flea-borne or endemic typhus) is an undifferentiated febrile illness caused by the bacterium Rickettsia typhi. The disease, transmitted by rat and cat fleas, is endemic to seaboard regions worldwide. Recently, murine typhus...

(This article belongs to the Special Issue New Insights into Rickettsia and Related Organisms)
  • Brief Report
  • Open Access
617 Views
8 Pages

Typhus Group Rickettsiosis and the Dengue Diagnostic Paradox: Low Laboratory-Confirmed Dengue Amid the Americas’ Largest Epidemic

  • Manuel Sierra,
  • Elsa Palou,
  • Fernando Baires,
  • Helen Hoffman,
  • Heike Hesse,
  • Miguel Sierra-Hoffman and
  • Amy C. Madril

Background: Rickettsial diseases, particularly typhus group rickettsioses, remain underrecognized across the Americas despite ecological conditions favorable for transmission. Concurrently, Central America is experiencing one of its largest dengue ep...

  • Article
  • Open Access
18 Citations
6,507 Views
13 Pages

Rickettsial Infections and Q Fever Amongst Febrile Patients in Bhutan

  • Tshokey Tshokey,
  • John Stenos,
  • David N. Durrheim,
  • Keith Eastwood,
  • Chelsea Nguyen,
  • Gemma Vincent and
  • Stephen R. Graves

There is limited evidence of rickettsial diseases in Bhutan. We explored the contribution of rickettsioses as a cause of undifferentiated febrile illness in patients presenting to 14 Bhutanese hospitals from October 2014 to June 2015. Obvious causes...

(This article belongs to the Special Issue The Past and Present Threat of Rickettsial Diseases)
  • Article
  • Open Access
1 Citations
3,816 Views
18 Pages

Serological Evidence of Exposure to Spotted Fever Group and Typhus Group Rickettsiae in Australian Wildlife Rehabilitators

  • Karen O. Mathews,
  • David Phalen,
  • Jacqueline M. Norris,
  • John Stenos,
  • Jenny-Ann Toribio,
  • Nicholas Wood,
  • Stephen Graves,
  • Paul A. Sheehy,
  • Chelsea Nguyen and
  • Katrina L. Bosward

Rickettsioses are arthropod-borne zoonotic diseases, several of which occur in Australia. This study aimed to assess the exposure levels and risk factors for Rickettsia spp. among Australian wildlife rehabilitators (AWRs) using serology, PCR and a qu...

(This article belongs to the Collection Updates on Rickettsia and Coxiella)
  • Article
  • Open Access
3 Citations
1,596 Views
12 Pages

Ecologic and Sociodemographic Factors Associated with Seroprevalence of Rickettsia in Yucatan, Mexico

  • Edgar Villarreal-Jimenez,
  • Karla Dzul-Rosado,
  • Fernando Puerto-Manzano,
  • Jorge C. Guillermo-Herrera,
  • Henry Pech-Noh and
  • Nina Mendez-Dominguez

Background: Rickettsioses disproportionately affect vulnerable populations and are frequently misdiagnosed as other febrile illnesses in Yucatan, the Mexican state with the greatest diversity of Rickettsia spp. Although significant seroprevalence has...

  • Article
  • Open Access
2 Citations
3,280 Views
11 Pages

Clinical Characteristics and Diagnostic Prediction of Severe Fever with Thrombocytopenia Syndrome and Rickettsiosis in the Co-Endemic Wakayama Prefecture, Japan

  • Kan Teramoto,
  • Shinobu Tamura,
  • Kikuaki Yoshida,
  • Yukari Inada,
  • Yusuke Yamashita,
  • Masaya Morimoto,
  • Toshiki Mushino,
  • Daisuke Koreeda,
  • Kyohei Miyamoto and
  • Yusuke Koizumi
  • + 3 authors

17 November 2023

Background and Objectives: The Wakayama prefecture is endemic for two types of tick-borne rickettsioses: Japanese spotted fever (JFS) and scrub typhus (ST). Severe fever with thrombocytopenia syndrome (SFTS) is a tick-borne hemorrhagic viral disease...

(This article belongs to the Special Issue Diagnosis and Possible Therapeutic Options for COVID-19 and Other Infectious Diseases)