Seroprevalence of Bartonella henselae and Toxoplasma gondii among Healthy Individuals in Thailand.

Maruyama, Soichi; Boonmar, Sumalee; Morita, Yukio; Sakai, Takeo; Tanaka, Shigeo; Yamaguchi, Fukumitsu; Kabeya, Hidenori; Katsube, Yasuji

doi:10.1292/jvms.62.635

Cited by 37 publications

(39 citation statements)

References 19 publications

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“…Despite the absence of any clinical report of cases of CSD in this country, we were able to document the presence of B. henselae antibodies in ϳ 5.5% of healthy Thai people, 24 a percentage very similar to what has been observed in other countries where CSD is endemic. [28][29][30] However, further investigation is necessary to better understand the epidemiology of CSD in Asian countries.…”

Section: Discussionsupporting

confidence: 66%

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Prevalence of Bartonella species and 16s rRNA gene types of Bartonella henselae from domestic cats in Thailand.

Maruyama¹,

Sakai

Morita

et al. 2001

The American Journal of Tropical Medicine and Hygiene

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Abstract. Prevalence of Bartonella infection among 275 cats in 9 sites from 4 geographical regions (northern area: Chiang Mai; central area: Kanchanaburi, Ratchaburi, and Bangkok; northeastern area: Khon Kaen, Roi Et, Ubon Ratcharthani, and Nakhonratchasima; southern area: Songkhla) of Thailand was investigated. Overall, Bartonella species were isolated from 27.6% (76 of 275) of the cats. The isolation rate varied from 12.8% (5 of 39) in Songkhla (southern area) to 50.0% (26 of 52) in Khon Kaen (northeastern area). Bartonella henselae and B. clarridgeiae were isolated from 82.9% (63 of 76) and 11.8% (9 of 76) of the Bartonella-positive cats, respectively. Coinfection with both species was found in 5.3% (4 of 76) of the bacteremic cats. Of the 67 bacteremic cats from which B. henselae was isolated, 48 (71.6%) and 13 (19.4%) were infected with only Type I and Type II, respectively. Coinfection with both types was observed in 9.0% (6 of 67) of the B. henselae-positive cats. To our knowledge, this is the first report on the presence of Bartonella infection in domestic cats from Thailand, which constitute a large reservoir of Bartonella infection in this country.

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Section: Discussionsupporting

confidence: 66%

“…It is estimated that the cat population in Thailand is ϳ 2 million. Although Maruyama and others 24 showed the presence of B. henselae antibodies in healthy people in Thailand, there are no reports yet on the prevalence of Bartonella species in domestic cats from this country and on the 16S rRNA gene types of B. henselae.…”

Section: Introductionmentioning

confidence: 88%

Prevalence of Bartonella species and 16s rRNA gene types of Bartonella henselae from domestic cats in Thailand.

Maruyama¹,

Sakai

Morita

et al. 2001

The American Journal of Tropical Medicine and Hygiene

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“…The frozen sera were thawed at room temperature and treated at 56 C for 30 min to inactivate the complement. The IFA procedure was followed by the method reported previously (11). The intensity of the bacillus-specific fluorescence was scored subjectively from 1 to 4, and the fluorescence score of 2 was considered to be positive at a dilution of 1:64 *The rate is significantly higher than that of other sources (P 0.001).…”

Section: Serological Investigation Of Bartonella Henselaementioning

confidence: 99%

Serological Investigation ofBartonella henselaeInfections in Clinically Cat‐Scratch Disease‐Suspected Patients, Patients with Cardiovascular Diseases, and Healthy Veterinary Students in Japan

Kikuchi

Maruyama

Sakai

et al. 2002

Microbiology and Immunology

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Seroprevalence of Bartonella henselae was investigated in Japan in 48 individuals clinically suspected of having cat‐scratch disease (CSD), 159 patients with cardiovascular diseases, and 129 healthy veterinary students. Of 48 CSD‐suspected patients examined, 19 (39.6%) were positive for B. henselae‐IgG and 4 (8.3%) for B. henselae‐IgM. Of 159 patients with cardiovascular diseases, 5 (3.1%) were positive for B. henselae‐IgG. In healthy veterinary students, 14 of 129 (10.9%) were positive for B. henselae‐IgG and 1 (0.8%) for B. henselae‐IgM. The positive rates of B. henselae‐IgG and ‐IgM in CSD‐suspected patients were significantly higher than in other sources. Most CSD‐suspected and healthy individuals who were positive for B. henselae antibody had had some contacts with cats. In CSD‐suspected patients, the B. henselae positive rate in females was significantly higher than in males, and high seropositive rates to B. henselae were found in younger age groups.

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“…Data on human infections have been limited to culturing strains of two Bartonella species ( B. henselae , agent of cat scratch disease and B. tamiae , a novel human pathogen recently described from cases of febrile illness 3,4 ) and two serological investigations. 5 Bartonella species have been isolated in Thailand from many mammalian hosts, including rodents, cats, and dogs. [6][7][8] No studies, however, have systematically assessed the scope of Bartonella species isolated from humans in Thailand or examined linkages to zoonotic sources.…”

Section: Introductionmentioning

confidence: 99%

Identification of Bartonella Infections in Febrile Human Patients from Thailand and Their Potential Animal Reservoirs

Kosoy¹,

Bai²,

Sheff³

et al. 2010

The American Society of Tropical Medicine and Hygiene

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126

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To determine the role of Bartonella species as causes of acute febrile illness in humans from Thailand, we used a novel strategy of co-cultivation of blood with eukaryotic cells and subsequent phylogenetic analysis of Bartonella-specific DNA products. Bartonella species were identified in 14 blood clots from febrile patients. Sequence analysis showed that more than one-half of the genotypes identified in human patients were similar or identical to homologous sequences identified in rodents from Asia and were closely related to B. elizabethae, B. rattimassiliensis, and B. tribocorum. The remaining genotypes belonged to B. henselae, B. vinsonii, and B. tamiae. Among the positive febrile patients, animal exposure was common: 36% reported owning either dogs or cats and 71% reported rat exposure during the 2 weeks before illness onset. The findings suggest that rodents are likely reservoirs for a substantial portion of cases of human Bartonella infections in Thailand.

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Seroprevalence of Bartonella henselae and Toxoplasma gondii among Healthy Individuals in Thailand.

Cited by 37 publications

References 19 publications

Prevalence of Bartonella species and 16s rRNA gene types of Bartonella henselae from domestic cats in Thailand.

Prevalence of Bartonella species and 16s rRNA gene types of Bartonella henselae from domestic cats in Thailand.

Serological Investigation ofBartonella henselaeInfections in Clinically Cat‐Scratch Disease‐Suspected Patients, Patients with Cardiovascular Diseases, and Healthy Veterinary Students in Japan

Identification of Bartonella Infections in Febrile Human Patients from Thailand and Their Potential Animal Reservoirs

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