New bacterium transmits from ticks to dogs A new bacterium called Rickettsia finnyi is a tick-born species capable of infecting dogs. Learn more about how to prevent its spread.

New #bacterium transmits from #ticks to #dogs ...

| #canine | #bacteria | #Rickettsia | #infection | #pathogen | Via aaha .org

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#Endosymbiont load dictates reproductive fate: Experimental validation for the bacterial dosage model in a parthenogenetic #weevil (#Coleoptera, #Curculionidae)
doi.org/10.1111/imb.70030

#Wolbachia #Rickettsia #ReproductiveSuccess

Exploring the diversity of #Rickettsia in carnivores of the Brazilian cerrado: An analysis of the relationship with #ticks Publication date: May 2026 Source: #ticks and #tick-borne Diseases, Volume 17, Issue 3 Author(s): Ana Paula Nunes de Quadros, George Magno Sousa do Rego, Lina de Campos Binder, Thiago Fernandes Martins, Igor Silva Silito, Ane Beatriz Escouto Teixeira, Jessica Cabral Carvalho, Wericles Ribeiro dos Santos, Marisa Vieira Carvalho, Ana Raquel Gomes Faria, Filipe Ferreira Pedroso, Paulo Sérgio Ribeiro de Mattos, Márcio Botelho de Castro, Marcelo B. Labruna, Giane Regina Paludo

Exploring the diversity of #Rickettsia in carnivores of the Brazilian cerrado: An analysis of the relationship with #ticks Ticks&TBD

Exploring the diversity of #Rickettsia in carnivores of the Brazilian cerrado: An analysis of the relationship with #ticks Publication date: May 2026 Source: #ticks and #tick-borne Diseases, Volume 17, Issue 3 Author(s): Ana Paula Nunes de Quadros, George Magno Sousa do Rego, Lina de Campos Binder, Thiago Fernandes Martins, Igor Silva Silito, Ane Beatriz Escouto Teixeira, Jessica Cabral Carvalho, Wericles Ribeiro dos Santos, Marisa Vieira Carvalho, Ana Raquel Gomes Faria, Filipe Ferreira Pedroso, Paulo Sérgio Ribeiro de Mattos, Márcio Botelho de Castro, Marcelo B. Labruna, Giane Regina Paludo

Exploring the diversity of #Rickettsia in carnivores of the Brazilian cerrado: An analysis of the relationship with #ticks Ticks&TBD

Ticks carrying more than one pathogen are on the rise in US Northeast Tick-borne diseases are on the rise in the northeastern US, with many ticks carrying more than one pathogen. So reports a recent analysis published in Ecosphere by researchers at Cary Institute of…

#Ticks carrying more than one #pathogen are on the rise in U.S. Northeast ...

| #diseases | #infections | #pathogens | #Borrelia | #Babesia | #Anaplasma | #Rickettsia | #Powassan | By @caryinstitute.bsky.social via eurekalert .org

Photos: #Pantomorus postfasciatus weevil; dissected P. postfasciatus female reproductive organs showing eggs. Credits: Lucia Fernandez Goya.

#Wolbachia #Rickettsia #ReproductiveSuccess

Identification of #Rickettsia conorii Indian #tick typhus strain in a Patient and an Attached Rhipicephalus turanicus #tick in Xinjiang, China Publication date: March 2026 Source: #ticks and #tick-borne Diseases, Volume 17, Issue 2 Author(s): Zhongqiu Teng, Xinting Li, Li Yang, Xianxian Zhang, Na Zhao, Junrong Liang, Jia He, Xue Zhang, Lupeng Dai, Xiaobo Lu, Tian Qin

Identification of #Rickettsia conorii Indian #tick typhus strain in a Patient and an Attached Rhipicephalus turanicus #tick in Xinjiang, China Ticks&TBD

Conversion of a thelytokous to a stable bisexual line by non‐target effect antibiotic elimination of Rickettsia in Anastatus gansuensis Multigenerational low-dose rifampicin treatment successfully created the stable, Rickettsia-free bisexual line in a hymenopteran host, Anastatus gansuensis, as confirmed through molecular and phenoty...

Conversion of a #thelytokous to a stable bisexual line by non-target effect antibiotic elimination of #Rickettsia in Anastatus gansuensis #parasitoids #symbionts #biological control
onlinelibrary.wiley.com/doi/10.1111/...

Identification of #Rickettsia conorii Indian #tick typhus strain in a Patient and an Attached Rhipicephalus turanicus #tick in Xinjiang, China Publication date: March 2026 Source: #ticks and #tick-borne Diseases, Volume 17, Issue 2 Author(s): Zhongqiu Teng, Xinting Li, Li Yang, Xianxian Zhang, Na Zhao, Junrong Liang, Jia He, Xue Zhang, Lupeng Dai, Xiaobo Lu, Tian Qin

Identification of #Rickettsia conorii Indian #tick typhus strain in a Patient and an Attached Rhipicephalus turanicus #tick in Xinjiang, China Ticks&TBD

Low exposure of dogs to #ticks and #Rickettsia spp. in the vicinity of the largest inland Atlantic Rainforest remnant in Southern Brazil Publication date: Available online 8 January 2026 Source: Acta Tropica Author(s): Matias Pablo Juan Szabó, Adriane Suzin, Alexandre Vogliotti, Rodrigo da Costa Maia, Marcelo B. Labruna

Low exposure of dogs to #ticks and #Rickettsia spp. in the vicinity of the largest inland Atlantic Rainforest remnant in Southern Brazil #ActaTropica

Molecular detection of #Anaplasma phagocytophilum, Borrelia burgdorferi s.l., Coxiella burnetii, Ehrlichia chaffeensis and #Rickettsia spp. in #ticks collected from wild animals in six provinces of South Africa Publication date: Available online 8 January 2026 Source: Acta Tropica Author(s): Eva Bártová, Ali Halajian, Marie Budíková, Alena Žákovská, Heloise Heyne

Molecular detection of #Anaplasma phagocytophilum, Borrelia burgdorferi s.l., Coxiella burnetii, Ehrlichia chaffeensis and #Rickettsia spp. in #ticks collected from wild animals in six provinces of South Africa #ActaTropica

Low exposure of dogs to #ticks and #Rickettsia spp. in the vicinity of the largest inland Atlantic Rainforest remnant in Southern Brazil Publication date: Available online 8 January 2026 Source: Acta Tropica Author(s): Matias Pablo Juan Szabó, Adriane Suzin, Alexandre Vogliotti, Rodrigo da Costa Maia, Marcelo B. Labruna

Low exposure of dogs to #ticks and #Rickettsia spp. in the vicinity of the largest inland Atlantic Rainforest remnant in Southern Brazil #ActaTropica

Molecular detection of #Anaplasma phagocytophilum, Borrelia burgdorferi s.l., Coxiella burnetii, Ehrlichia chaffeensis and #Rickettsia spp. in #ticks collected from wild animals in six provinces of South Africa Publication date: Available online 8 January 2026 Source: Acta Tropica Author(s): Eva Bártová, Ali Halajian, Marie Budíková, Alena Žákovská, Heloise Heyne

Molecular detection of #Anaplasma phagocytophilum, Borrelia burgdorferi s.l., Coxiella burnetii, Ehrlichia chaffeensis and #Rickettsia spp. in #ticks collected from wild animals in six provinces of South Africa #ActaTropica

Molecular detection of medically important rickettsiae, including #Rickettsia prowazekii in Rhipicephalus appendiculatus and Hyalomma rufipes: A microbiome perspective Publication date: January 2026 Source: #ticks and #tick-borne Diseases, Volume 17, Issue 1 Author(s): OV Anyango, OW Aool, M Lukindu, T Nakayiki, J Lutwama, JK Kayondo, CD Phillips, J Lutomiah, J Mutisya, CL Brelsfoard, MG Onyango

Molecular detection of medically important rickettsiae, including #Rickettsia prowazekii in Rhipicephalus appendiculatus and Hyalomma rufipes: A microbiome perspective Ticks&TBD

Molecular detection of medically important rickettsiae, including #Rickettsia prowazekii in Rhipicephalus appendiculatus and Hyalomma rufipes: A microbiome perspective Publication date: January 2026 Source: #ticks and #tick-borne Diseases, Volume 17, Issue 1 Author(s): OV Anyango, OW Aool, M Lukindu, T Nakayiki, J Lutwama, JK Kayondo, CD Phillips, J Lutomiah, J Mutisya, CL Brelsfoard, MG Onyango

Molecular detection of medically important rickettsiae, including #Rickettsia prowazekii in Rhipicephalus appendiculatus and Hyalomma rufipes: A microbiome perspective Ticks&TBD

First molecular evidence of #Rickettsia massiliae and R. slovaca in Rhipicephalus microplus #ticks from China Publication date: Available online 3 January 2026 Source: Acta Tropica Author(s): Yuan-Ping Deng, Yi-Liu Liu, Ya Zhang, Yi-Tian Fu, Meng Qi, Guo-Hua Liu

First molecular evidence of #Rickettsia massiliae and R. slovaca in Rhipicephalus microplus #ticks from China #ActaTropica

First molecular evidence of #Rickettsia massiliae and R. slovaca in Rhipicephalus microplus #ticks from China Publication date: Available online 3 January 2026 Source: Acta Tropica Author(s): Yuan-Ping Deng, Yi-Liu Liu, Ya Zhang, Yi-Tian Fu, Meng Qi, Guo-Hua Liu

First molecular evidence of #Rickettsia massiliae and R. slovaca in Rhipicephalus microplus #ticks from China #ActaTropica

EMERGENCE OF A NOVEL TICK-BORNE RICKETTSIA SPECIES IN CANINE HOSTS: IMPLICATIONS FOR ANIMAL AND PUBLIC HEALTH

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Read the press release from @ncstate.bsky.social, by Tracey Peake: news.ncsu.edu/2025/12/rese...

#onehealth #ticks #tickbornediseases #rickettsia

NIEUWE PATHOGENE DOOR TEKEN OVERGEDRAGEN RICKETTSIA-BACTERIE ONTDEKT BIJ HONDEN: WAT BETEKENT DIT VOOR DIER- EN VOLKSGEZONDHEID?

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Lees het persbericht van de @ncstate.bsky.social, door Tracey Peake: news.ncsu.edu/2025/12/rese...

#onehealth #teken #tekenbeetziekten #rickettsia

Researchers confirm new Rickettsia species found in dogs | LymeDisease.org By Tracy Peake, NC State Researchers from North Carolina State University have confirmed that a species of Rickettsia first seen in dogs in 2018 is a new

New #Rickettsia species found in #dogs ...

| #canine | #bacteria | #ticks | #pathogen | #DNA | Via @lymenews.bsky.social

New research in #RESMedVetEnt

#Rickettsia detection in #fleas associated with cricetid rodents in a periurban area of Argentina

#Siphonaptera #Epidemiology
@wileyeco.bsky.social

In search for #tick-borne encephalitis virus and #Rickettsia in Belgian Ixodes ricinus #ticks: Evidence of #Rickettsia felis Publication date: Available online 8 November 2025 Source: Acta Tropica Author(s): Jasmine Coppens, Anke Stoefs, Jolien Baeyens, Hanne Rasson, Leo Heyndrickx, Jacob Verschueren, Bart K.M. Jacobs, Isra Deblauwe, Kevin K. Ariën, Marjan Van Esbroeck

In search for #tick-borne encephalitis virus and #Rickettsia in Belgian Ixodes ricinus #ticks: Evidence of #Rickettsia felis #ActaTropica

In search for #tick-borne encephalitis virus and #Rickettsia in Belgian Ixodes ricinus #ticks: Evidence of #Rickettsia felis Publication date: Available online 8 November 2025 Source: Acta Tropica Author(s): Jasmine Coppens, Anke Stoefs, Jolien Baeyens, Hanne Rasson, Leo Heyndrickx, Jacob Verschueren, Bart K.M. Jacobs, Isra Deblauwe, Kevin K. Ariën, Marjan Van Esbroeck

In search for #tick-borne encephalitis virus and #Rickettsia in Belgian Ixodes ricinus #ticks: Evidence of #Rickettsia felis #ActaTropica

New research in #RESMedVetEnt

First detection of #Rickettsia japonica in #Hyalomma dromedarii #ticks infesting #camels from Egypt: A call for enhanced surveillance of tick-borne pathogens
doi.org/10.1111/mve.70013

#InsectVectors #InsectBorneDiseases #Phylogenetics
@wiley.com

Hard #ticks (Acari: Ixodidae) associated with resident and neotropical migratory wild birds in Colombian tropical rainforests with detection of #Rickettsia species Publication date: Available online 28 August 2025 Source: Acta Tropica Author(s): Estefani T. Martínez-Sánchez, Johnathan Alvarez‑Londoño, Daniel Moreno-López, Héctor E. Ramírez-Chaves, Gabriel J. Castaño-Villa, Fredy A. Rivera‑Páez

Hard #ticks (Acari: Ixodidae) associated with resident and neotropical migratory wild birds in Colombian tropical rainforests with detection of #Rickettsia species #ActaTropica

Santa Monica reports Typhus outbreak as County cases surge Health officials are investigating a flea-borne typhus outbreak in Santa Monica, marking the second outbreak Los Angeles County has faced

#Typhus #outbreak reported in Santa Monica ...

| #California | #infections | #fea | #bacteria | #Rickettsia | Via smdp .com

Hard #ticks (Acari: Ixodidae) associated with resident and neotropical migratory wild birds in Colombian tropical rainforests with detection of #Rickettsia species Publication date: Available online 28 August 2025 Source: Acta Tropica Author(s): Estefani T. Martínez-Sánchez, Johnathan Alvarez‑Londoño, Daniel Moreno-López, Héctor E. Ramírez-Chaves, Gabriel J. Castaño-Villa, Fredy A. Rivera‑Páez

Hard #ticks (Acari: Ixodidae) associated with resident and neotropical migratory wild birds in Colombian tropical rainforests with detection of #Rickettsia species #ActaTropica

shout out to @febrilepodcast.com for best infographics! #eschar #tachenoir (not pathognomonic for 1 rickettsial infection) #rickettsia

eschar+fever #rickettsia
Ddx: Scrub typhus (Orientalis tsutsugamushi) occurs in Asia including China/India/Japan
R. conori (Mediterranean Spotted fever...not in US)
R. africae (African tick bite fever, not in US),
O. tsutsugamushi (not in US) associated w/ eschars; however, R. typhi is worldwide

#rickettsia Ab titers can remain elevated x months post dz resolution or can be detected in persons who were exposed previously to antigenically related organisms. (10% w/ elevated Ab in some areas). Therefore, a single Ab titer should not be used to document or exclude a dx