Results 21 to 30 of about 5,340 (173)

Restriction of the growth of a nonpathogenic spotted fever group rickettsia [PDF]

FEMS Immunology & Medical Microbiology, 2012
The growth kinetics of pathogenic and nonpathogenic rickettsiae were compared to elucidate the mechanism responsible for the pathogenicity of rickettsiae. Vero and HeLa cells derived from mammals were inoculated with a nonpathogenic species of spotted fever group rickettsia, Rickettsia montanensis, before being infected with the pathogenic species ...
Tsuneo, Uchiyama, Mahomi, Kishi, Motohiko, Ogawa   +2 more
openaire   +2 more sources

Surface proteins of typhus and spotted fever group rickettsiae [PDF]

Infection and Immunity, 1978
Six proteins, previously established as major constituents of intact organisms, were identified in cell envelopes obtained from intrinsically radiolabeled Rickettsia prowazekii. Extrinsic radioiodination of intact organisms conducted at 0.5 micronM iodide indicated that protein 4 was the most peripheral, although protein 1 also had reactive groups ...
J V, Osterman, C S, Eisemann
openaire   +2 more sources

Japanese Spotted Fever, South Korea

Emerging Infectious Diseases, 2006
We describe the first case of Japanese spotted fever and the first isolate of spotted fever group rickettsia from a patient in South Korea. The isolated rickettsia from the patient was identified as Rickettsia japonica by analysis of the nucleotide ...
Moon-Hyun Chung, Seung-Hyun Lee, Mi-Jeong Kim, Jung-Hee Lee, Eun-Sil Kim, Jin-Soo Lee, Mee-Kyung Kim, Mi-Yeoun Park, Jae-Seung Kang   +8 more
doaj   +1 more source

Improved Detection and Sequencing of Rickettsia spp. DNA in South African Wildlife. [PDF]

Vet Med Sci
Nested gltA PCR detected Rickettsia spp. DNA in 44% of South African wildlife samples previously negative by RLB, revealing spotted fever, typhus and transitional group lineages, novel host records, co‐infection and multi‐organ dissemination in impala, highlighting complex wildlife involvement and zoonotic risk within a One Health framework.
Cossu CA, Menandro ML, Mondin A, Dotto G, Bhoora RV, van Heerden H.   +5 more
europepmc   +2 more sources

Genetic variation in Australian spotted fever group rickettsiae [PDF]

Journal of Clinical Microbiology, 1996
Rickettsiae were isolated by cell culture of buffy coat blood from six patients with spotted fever from southeastern Australia and Flinders Island in Bass Strait. The isolates were genetically compared with two previous Rickettsia australis patient isolates.
R W, Baird, J, Stenos, R, Stewart, B, Hudson, M, Lloyd, S, Aiuto, B, Dwyer   +6 more
openaire   +2 more sources

SPOTTED FEVER GROUP RICKETTSIA IN DOGS IN JAPAN

Japanese Journal of Medical Science and Biology, 1989
Prevalence of antibody against spotted fever group-rickettsia in dogs (14/134) from the northern part of Shikoku Island, where spotted fever group rickettsia infection in human is endemic, is significantly higher than that in dogs (4/189) from nonendemic areas.
MORITA, Chiharu, TSUBOI, Yoshimasa, IIDA, Akihiro, MOHRI, Shirou, HANDA, Sumio, FUKUI, Masanobu   +5 more
openaire   +3 more sources

First detection and molecular identification of Rickettsia massiliae, a human pathogen, in Rhipicephalus sanguineus ticks collected from Southern Taiwan.

PLoS Neglected Tropical Diseases, 2022
The Rickettsia massiliae was firstly detected and identified in Rhipicephalus sanguineus ticks infested on dogs in Taiwan. A total of 1154 Rh. sanguineus ticks collected from 158 dogs of four districts of Tainan city were examined for Rickettsia ...
Li-Lian Chao, Melissa Robinson, You-Fu Liang, Chien-Ming Shih   +3 more
doaj   +1 more source

Spotted Fever Group Rickettsioses in Israel, 2010–2019

Emerging Infectious Diseases, 2021
In a multicenter, nationwide, retrospective study of patients hospitalized with spotted fever group rickettsiosis in Israel during 2010–2019, we identified 42 cases, of which 36 were autochthonous.
Regev Cohen, Talya Finn, Frida Babushkin, Yael Paran, Ronen Ben Ami, Alaa Atamna, Sharon Reisfeld, Gabriel Weber, Neta Petersiel, Hiba Zayyad, Eyal Leshem, Miriam Weinberger, Yasmin Maor, Nicola Makhoul, Lior Nesher, Galia Zaide, Dar Klein, Adi Beth-Din, Yafit Atiya-Nasagi   +18 more
doaj   +1 more source

Spotted Fever Group Rickettsiae in Ticks, Germany

Emerging Infectious Diseases, 2011
To explore increased risk for human Rickettsia spp. infection in Germany, we investigated recreational areas and renatured brown coal surface-mining sites (also used for recreation) for the presence of spotted fever group rickettsiae in ticks. R. raoultii (56.7%), R. slovaca (13.3%), and R.
Cornelia Silaghi, Dietmar Hamel, Claudia Thiel, Kurt Pfister, Martin Pfeffer   +4 more
openaire   +3 more sources

Primary isolation of spotted fever group rickettsiae from Amblyomma cooperi collected from Hydrochaeris hydrochaeris in Brazil

Memorias do Instituto Oswaldo Cruz, 1996
This paper reports the first isolation of a spotted fever group rickettsia from an Amblyomma cooperi ixodid collected from a capybara (Hydrochaeris hydrochaeris) in an endemic area of spotted fever in the County of Pedreira, State of São Paulo, Brazil ...
Elba Regina Sampaio de Lemos, Heloísa Helena Barbosa Melles, Sílvia Colombo, Raimundo Diogo Machado, José Rodrigues Coura, Maria Angélica Arpon Guimarães, Selênio R Sanseverino, Aline Moura   +7 more
doaj   +1 more source