Seroepidemiological Study of Spotted Fever Group Rickettsiae and Identification of a Putative New Species, Rickesttsia sp. Da-1, in Gongliao, Northeast Taiwan
| Autor: | Pei-Yun Shu, Shu-Fen Chang, Yin-Chao Chang, Hsi-Chieh Wang, Tsai-Ying Yen, Chien-Ling Su, Kun-Hsien Tsai |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Microbiology (medical)
Veterinary medicine General Immunology and Microbiology biology seroprevalence spotted fever group rickettsiae Rickettsia sp. Da-1 Rhipicephalus sanguineus Rhipicephalus haemaphysaloides Dermacentor auratus Haemaphysalis biology.organism_classification bacterial infections and mycoses Spotted fever Infectious Diseases Rickettsia parasitic diseases Immunology and Allergy Haemaphysalis hystricis Seroprevalence Medicine Molecular Biology |
| Zdroj: | Pathogens, Vol 10, Iss 1434, p 1434 (2021) Pathogens; Volume 10; Issue 11; Pages: 1434 |
| ISSN: | 2076-0817 |
| Popis: | Tick-borne spotted fever group (SFG) rickettsioses were neglected in Taiwan. The study reported a seroepidemiological survey of SFG rickettsiae in residents in Gongliao District, Northeast Taiwan. Blood samples were examined for antibodies against SFG rickettsiae by enzyme-linked immunosorbent assay and immunofluorescence assay. Risk factors were assessed using logistic regression. Ticks parasitizing dogs were collected within a 2 km radius from the houses of seropositive participants, and PCR was performed to detect possible tick-borne pathogens. Of 1108 participants, 75 (6.8%) had antibodies against SFG rickettsiae. Residents were more likely to be seropositive if they were older than 65 years, recruited by Dr. Enjoy’s Clinic, or resided in Jilin village. A total of 184 ticks including 5 species (Rhipicephalus sanguineus, Rhipicephalus haemaphysaloides, Dermacentor auratus, Haemaphysalis hystricis, Haemaphysalis ornithophila) were collected. Rickettsia spp. were detected in 6.5% (12/184) of ticks. Rickettsia sp. TwKM01 was found in 6 R. sanguineus and 4 R. haemaphysaloides; while Rickettsia sp. TwKM03 was identified in 1 R. sanguineus. Moreover, gene-based pairwise analysis indicated identification of a putative new species, Rickettsia sp. Da-1, in D. auratus. These findings provided evidence of SFG rickettsiae infection in ticks and suggested SFG rickettsiae exposure in the residents. |
| Databáze: | OpenAIRE |
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