Vector-borne Rickettsia Pathogens by Yuexun Tian, Phillip E. Kaufman, Cynthia C. Lord

Subjects: “…Rickettsia…”
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Wolbachia, Spiroplasma, and Rickettsia symbiotic bacteria in aphids (Aphidoidea) by D. A. Romanov, I. A. Zakharov, E. V. Shaikevich

“…The aim of the work was to determine the occurrence and genetic diversity of Wolbachia, Spiroplasma and Rickettsia symbionts in aphids collected in 2018–2019 in Moscow. …”
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First molecular diagnosis of the human pathogen Rickettsia raoultii and other spotted fever group rickettsiae in Sudanese ixodid ticks from domestic ruminants by Nagwa Eisawi, Jabbar Ahmed, Mohammed A. Bakheit, Dina A. Hassan, Mohammed O. Hussien, Abdel Rahim M. El Hussein

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Seroprevalence against Rickettsia and Borrelia Species in Patients with Uveitis: A Prospective Survey by Kim B. Madsen, Katarina Wallménius, Åke Fridman, Carl Påhlson, Kenneth Nilsson

“…Seven patients (14.6%) showed seroconversion to Rickettsia spp. between acute and convalescent phase sera, which provides support for a positive Rickettsia diagnosis according to guidelines. …”
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Coinfection with Rickettsia helvetica and Herpes Simplex Virus 2 in a Young Woman with Meningoencephalitis by Kenneth Nilsson, Katarina Wallménius, Carl Påhlson

“…Further investigation in an ongoing project, using PCR and sequencing of the amplified products, showed the presence of Rickettsia helvetica in the cerebrospinal fluid. The bacteria were also isolated in Vero cell culture, and microimmunofluorescence confirmed the development of antibodies against Rickettsia spp. with predominance of IgM reactivity consistent with recent infection. …”
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Experimental infection of wild boars (Sus scrofa) with Rickettsia rickettsii and evaluation of the transmission potential to Amblyomma sculptum ticks by Lucianne Cardoso Neves, Lina de Campos Binder, Warley Vieira de Freitas Paula, Nicolas Jalowitzki de Lima, Ennya Rafaella Neves Cardoso, Rayane Almeida Santos, Raphaela Bueno Mendes Bittencourt, Gracielle Teles Pádua, Gabriel Cândido dos Santos, Mariana Avelar Tavares, Maria Carolina de Azevedo Serpa, Adriano Pinter, Artur Luiz de Almeida Felicio, Marcelo B. Labruna, Felipe da Silva Krawczak

“…Abstract Background Brazilian spotted fever is a tick-borne disease caused by the bacterium Rickettsia rickettsii, whose main vector in Brazil is the tick Amblyomma sculptum. …”
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The Rickettsia actin-based motility effectors RickA and Sca2 contribute differently to cell-to-cell spread and pathogenicity by Cuong J. Tran, Zahra Zubair-Nizami, Ingeborg M. Langohr, Matthew D. Welch

Subjects: “…Rickettsia…”
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Molecular identification and antibiotic clearance of Mycoplasma arginini and Mycoplasma orale from cell cultures infected with Rickettsia or Ehrlichia species by Michelle E. J. Allerdice, Savannah L. Shooter, Maria F. B. M. Galletti, Joy A. Hecht, Sandor E. Karpathy, Christopher D. Paddock

Subjects: “…Rickettsia…”
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Seasonal and Gender Differences in Presence of Rickettsia felis and Blood meals Provide Additional Evidence of a Vector Role for Mosquitoes by Jilei Zhang, Guangwu Lu, Patrick John Kelly, Chengming Wang

“…Rickettsia felis belongs to spotted fever group Rickettsia and is an emerging human pathogen most commonly transmitted by a range of fleas and ticks. …”
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Diagnosis of a Rare Rickettsia felis Infection Complicated with Unusual Pericardial Effusion and Cardiac Tamponade Using an mNGS Test by Tien-Lung Po, Chien-Hsien Huang, Chia-Hsun Lin, Huei-Fong Hung

“…At present, the immunofluorescence assay is the prevailing diagnostic method for suspected rickettsioses that enables the detection of specific antibodies against rickettsia in human serum. Herein, we present an exceptional instance of rickettsial infection that was characterized by a rare manifestation of extensive pericardial effusion leading to dyspnea and cardiac tamponade. …”
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Spotted fever group rickettsiae in black rats, pets, and humans in Zungarococha community, A rural area in the surroundings of Iquitos, Peru by Cusi Ferradas, Guillermo Salvatierra, David Payahuanca, Winnie Contreras, Andrés M. López-Pérez, Therangika A. Hangawatte, Diana León, Bruno M. Ghersi, Ricardo Gamboa, Katia Manzanares Villanueva, Viviana Pinedo-Cancino, Risa Pesapane, Gabriela Salmón-Mulanovich, Andrés G. Lescano, Janet Foley

Subjects: “…Rickettsia spp., Black rats…”
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Bacterial diversity impacts as a result of combined sewer overflow in a polluted waterway by O. Calderon, H. Porter-Morgan, J. Jacob, W. Elkins

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Influence of endosymbionts on the reproductive fitness of the tick Ornithodoros moubata by Taraveau, Florian, Pollet, Thomas, Duhayon, Maxime, Gardès, Laëtitia, Jourdan-Pineau, Hélène

Subjects: “…Soft tick; Ornithodoros; microbiota; antibiotic treatment; Francisella-like endosymbiont; Rickettsia…”
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Ticks and Tick-Borne Pathogens in Wild Animals and Birds from Two Rehabilitation Facilities in Greece by Dimitrios Vourvidis, Georgia Tzouganatou, Sokratis Perdikaris, Evangelia Kofidou, Beatriz Martinez-Gonzalez, Mary Emmanouil, Emmanouil Papadogiannakis, Anastasia Komnenou, Emmanouil Angelakis

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A Comparison of the Clinical and Epidemiological Profile of Rocky Mountain Spotted Fever with Dengue and COVID-19 in Hospitalized Children, Sonora, México, 2015–2022 by Gerardo Álvarez-Hernández, Cristian Noé Rivera-Rosas, Jesús René Tadeo Calleja-López, Jehan Bonizú Álvarez-Meza, Maria del Carmen Candia-Plata, Denica Cruz-Loustaunau, Antonio Alvídrez-Labrado

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The distribution, phenology, host range and pathogen prevalence of Ixodes ricinus in France: a systematic map and narrative review by Perez, Grégoire, Bournez, Laure, Boulanger, Nathalie, Fite, Johanna, Livoreil, Barbara, McCoy, Karen D., Quillery, Elsa, René-Martellet, Magalie, Bonnet, Sarah I.

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Prevalence of Ticks Infesting Dairy Cattle and the Pathogens They Harbour in Smallholder Farms in Peri-Urban Areas of Nairobi, Kenya by Shepelo Getrude Peter, Hellen Wambui Kariuki, Gabriel Oluga Aboge, Daniel Waweru Gakuya, Ndichu Maingi, Charles Matiku Mulei

“…Although Rh. decoloratus was the most prevalent tick (24.5% (23/94)), the emerging Rh. microplus (6.4% (6/94)) was also identified. The DNA of Rickettsia was detected in the ticks, with Rickettsia conorii in H. rufipes and A. variegatum, and Rickettsia aeschlimannii in Rh. microplus and H. rufipes, while Ehrlichia ruminantium and E. canis were in A. variegatum. …”
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Ticks and tick-borne pathogens on Belle-Île-en-Mer: An exploratory study in a western French island environment by A. Haidar-Ahmad, C. Barthel, P. Boyer, G. Joncour, B. Degeilh, N. Boulanger

“…Both Dermacentor species harbored either Rickettsia slovaca (24 %) or Rickettsia raoultii (20 %), whereas I. ricinus carried Borrelia burgdorferi sensu lato and Anaplasma phagocytophilum but not Borrelia miyamotoi or Neoehrlichia mikurensis. …”
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Detection of <i>Ehrlichia</i> spp. and <i>Theileria</i> spp. in <i>Hyalomma anatolicum</i> ticks collected in Tajikistan by M. Yu. Kartashov, Yu. V. Kononova, I. D. Petrova, N. L. Tupota, T. P. Mikryukova, V. A. Ternovoi, F. H. Tishkova, V. B. Loktev

“…Hyalomma anatolicum ticks collected in the Tursunzade and Rudaki districts of Tajikistan were tested for DNA of Rickettsia spp., Ehrlichia spp., Anaplasma spp., Babesia spp., and Theileria spp. by PCR with specific primers. …”
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Interstitial pneumonia due to Japanese spotted fever by Katsunori Arai, Hirokazu Tokuyasu, Tatsuya Konishi, Toshiyuki Tatsukawa, Kenichi Takeda, Akira Yamasaki

“…In patients with signs of interstitial pneumonia on chest computed tomography, Rickettsial pneumonia should be considered in the differential diagnosis, especially if they have visited a Rickettsia‐endemic area.…”
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