Spatial distribution of Haemaphysalis species ticks and human Kyasanur Forest Disease cases along the Western Ghats of India, 2017-2018
| Autor: | Santhosha Devadiga, Muhammed Shakir, H. Hemanth Kumar, Yuvraj Bhandari, Sarthak Pattanaik, Hindol Maity, N. Naren Babu, Amogh Milind Auti, Nishikant Kumar, Jazeel Abdulmajeed, Govindakarnavar Arunkumar, Anup Jayaram, H. Agre Deepchand, Prashant Pareet |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Veterinary medicine Ixodidae India Haemaphysalis bispinosa Tick Forests 01 natural sciences 030308 mycology & parasitology 03 medical and health sciences Abundance (ecology) medicine Prevalence Animals Humans 0303 health sciences Ecology biology Haemaphysalis spinigera Incidence Outbreak General Medicine biology.organism_classification medicine.disease Haemaphysalis Kyasanur Forest Disease 010602 entomology Animal ecology Insect Science Animal Distribution Kyasanur forest disease |
| Zdroj: | Experimentalapplied acarology. 77(3) |
| ISSN: | 1572-9702 |
| Popis: | Kyasanur Forest Disease (KFD) is a viral haemorrhagic fever, transmitted to humans and other hosts by a tick vector of genus Haemaphysalis. It affects 400–500 people annually in the Western Ghats region of India through spring to summer season. To understand the species composition, distribution, and abundance of Haemaphysalis ticks in endemic taluks (sub-districts) of India, a surveillance for ticks was conducted between October 2017 and January 2018. In total 105 sites were selected based on grid sampling from five taluks representing five KFD endemic states in south India. A sum of 8373 ticks were collected by using standard flagging method. The study showed a wide distribution of host seeking tick species among the selected taluks, wherein Haemaphysalis spinigera was predominant in 3/5 taluks, Haemaphysalis bispinosa in 1/5 taluks, and both the species in 1/5 taluks. Further, the H. spinigera abundance was categorised and compared with the incidence of human cases during the same season. The grids with very high and high H. spinigera abundance had 70% of the 205 human cases reported. This method of tick surveillance could be efficiently used as a standard model for KFD transmission risk assessment and prediction of impending outbreaks. |
| Databáze: | OpenAIRE |
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