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  • 1
    Online-Ressource
    Online-Ressource
    Detection of Novel Spotted Fever Group Rickettsiae (Rickettsiales: Rickettsiaceae) in Ticks (Acari: Ixodidae) in Southwestern China
    Oxford University Press (OUP) ; 2021
    In:  Journal of Medical Entomology Vol. 58, No. 3 ( 2021-05-15), p. 1363-1369
    Details
    In: Journal of Medical Entomology, Oxford University Press (OUP), Vol. 58, No. 3 ( 2021-05-15), p. 1363-1369
    Kurzfassung: Spotted fever group rickettsiae, mainly maintained and transmitted by ticks, are important etiological agents of (re)emerging zoonotic diseases worldwide. It is of great significance to investigate spotted fever group rickettsiae in ticks in different areas for the prevention and control of rickettsioses. In this study, a total of 305 ticks were collected from wild and domestic animals in Chongqing, Guizhou, Yunnan, and Guangxi provinces of southwestern China during 2017–2019 and examined for the presence of spotted fever group rickettsiae by PCR with primers targeting the partial gltA, ompA, rrs, and htrA genes. Results showed that two spotted fever group rickettsiae species, including the pathogenic Candidatus Rickettsia jingxinensis (Rickettsiales: Rickettsiaceae) and a potential novel species Rickettsia sp. sw (Rickettsiales: Rickettsiaceae), were identified. The Ca. R. jingxinensis sequences were recovered from Rhipicephalus microplus (Ixodida: Ixodidae) and Haemaphysalis longicornis (Ixodida: Ixodidae) ticks and phylogenetically clustered with previous Ca. R. jingxinensis, Ca. R. longicornii (Rickettsiales: Rickettsiaceae), and Rickettsia sp. XY118 (Rickettsiales: Rickettsiaceae) strains. Rickettsia sp. sw was detected in Amblyomma geoemydae (Ixodida: Ixodidae) and Rh. microplus. Interestingly, as far as we know, this was the first report of Rickettsia (Rickettsiales: Rickettsiaceae) in A. geoemydae. Phylogenetic analyses indicated that this potential novel species was closely related to R. aeschlimannii (Rickettsiales: Rickettsiaceae) with gltA and ompA genes and grouped in a cluster composed of R. montanensis (Rickettsiales: Rickettsiaceae), R. raoultii (Rickettsiales: Rickettsiaceae), R. aeschlimannii, R. massiliae (Rickettsiales: Rickettsiaceae), and R. rhipicephali (Rickettsiales: Rickettsiaceae) with htrA, while formed a separate clade with rrs. The pathogenicity of Rickettsia sp. sw should be further confirmed. These results expand the knowledge of the geographical distribution and vector distribution of spotted fever group rickettsiae in China and are useful for assessing the potential public health risk.
    Materialart: Online-Ressource
    ISSN: 0022-2585 , 1938-2928
    URL: Article
    DOI: 10.1093/jme/tjaa294
    Sprache: Englisch
    Verlag: Oxford University Press (OUP)
    Publikationsdatum: 2021
    ZDB Id: 2031006-7
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 2
    Online-Ressource
    Online-Ressource
    Relationships Among Cyberbullying, School Bullying, and Mental Health in Taiwanese Adolescents
    Wiley ; 2013
    In:  Journal of School Health Vol. 83, No. 6 ( 2013-06), p. 454-462
    Details
    In: Journal of School Health, Wiley, Vol. 83, No. 6 ( 2013-06), p. 454-462
    Kurzfassung: This study examined the relationships among cyberbullying, school bullying, and mental health in adolescents. METHODS In 2010, a total of 2992 10th grade students recruited from 26 high schools in Taipei, Taiwan completed questionnaires. RESULTS More than one third of students had either engaged in cyberbullying or had been the target (cybervictim) of it in the last year. About 18.4% had been cyberbullied (cybervictim); 5.8% had cyberbullied others (cyberbully); 11.2% had both cyberbullied others and been cyberbullied (cyberbully‐victim). About 8.2% had been bullied in school (victim); 10.6% had bullied others (bully); and, 5.1% had both bullied others and had been bullied in school (bully‐victim). Students with Internet risk behaviors were more likely to be involved in cyberbullying and/or cybervictimization; students who had cyberbullying or victimization experiences also tended to be involved in school bullying/victimization. After controlling for sex, academic performance, and household poverty, cyber/school victims and bully‐victims were more likely to have lower self‐esteem, and cyber/school victims, bullies and bully‐victims were at a greater risk for serious depression. CONCLUSIONS Both cyberbullying and school bullying and/or victimization experiences were independently associated with increased depression.
    Materialart: Online-Ressource
    ISSN: 0022-4391 , 1746-1561
    URL: Issue
    URL: Article
    DOI: 10.1111/josh.2013.83.issue-6
    DOI: 10.1111/josh.12050
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2013
    ZDB Id: 2066647-0
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Online-Ressource
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