Tính ưa thích vật chủ và vai trò truyền bệnh của véc tơ sốt rét tại khu bảo tồn thiên nhiên Ea Sô, xã Ea Sô, huyện Ea Kar, tỉnh Đắk Lắk, năm 2020-2021=The role in malaria transmission and host preference of vectors in ea so nature reserve, Ea So commune, Ea Kar district, Dak Lak province, 2020-2021

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Tác giả: Đình Cảnh Hoàng, Văn Dũng Nguyễn, Văn Quang Phạm, Thanh Dương Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Y học cộng đồng, 2023

Mô tả vật lý: tr.45665

Bộ sưu tập: Metadata

ID: 477731

Thêm vào giỏ

To determine host preference of malaria vectors and malaria parasite infection rate in mosquitoes, entomological inoculation rate in Ea So nature reserve, Ea So commune, Ea Ka district, Dak Lak province. Subjects and methods: The host preference of malaria vectors was determined by an agar gel diffusion method, and the malaria parasite infection rates were found by Real-time PCR, according to the National Institute of Malariology - Parasitology – Entomology standard methods. The entomological inoculation rate was calculated according to WHO (2013) at 4 surveys in June and November 2020, May and December 2021. Results: An. dirus preferred humans, accounting for 100% (15/15), and An. maculatus displayed a preference for cattle accounting for 100% (2/2). However, the results were not enough to evaluate the host preference of mosquito species because of a small sample size, but these results could describe a part of the mosquito biting behavior. P. vivax was detected in An. dirus captured in the deep forest at a rate of 1.59% in 2020 and 0.595% in 2021. An. dirus could transmit malaria in the deep forest habitat. In which entomological inoculation rate in November 2020 was 0.125 and in December 2021 was 0.042. Conclusions: An. dirus had a strong preference for humans and An. dirus had played an essential role in malaria transmission in the deep forest.Xác định vật chủ ưa thích, tỷ lệ nhiễm ký sinh trùng sốt rét và chỉ số lan truyền của của véc tơ sốt rét tại khu bảo tồn thiên nhiên Ea Sô, xã Ea Sô, huyện Ea Ka, tỉnh Đắk Lắk. Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang xác định máu vật chủ bằng phương pháp khuếch tán trên thạch và xác định ký sinh trùng trong muỗi bằng Real time PCR được thực hiện theo quy trình của Viện Sốt rét – Ký sinh trùng – côn trùng Trung ương. Xác định chỉ số lan truyền côn trùng của VTSR theo WHO (2013) vào tháng 6 và tháng 11 năm 2020, tháng 5 và tháng 12 năm 2021. Kết quả: An. dirus đốt người chiếm tỷ lệ 100% (15/15) và muỗi An. maculatus đốt trâu, bò chiếm tỷ lệ 100% (2/2). Tuy nhiên với cỡ mẫu tương đối nhỏ nên kết quả chưa đủ để đánh giá vật chủ của muỗi mà chỉ phần nào mô tả được tập tính đốt mồi của véc tơ truyền bệnh sốt rét. Chỉ phát hiện được 1 loài ký sinh trùng sốt rét (KSTSR) là P. vivax nhiễm ở An. dirus bắt được ở trong rừng với tỷ lệ 1,59% vào năm 2020 và 0,595% vào năm 2021. An. dirus có khả năng lan truyền bệnh sốt rét và chứng minh được khả năng truyền sốt rét ở sinh cảnh trong rừng. Trong đó chỉ số lan truyền sốt rét vào tháng 11/2020 là 0,125 và chỉ số lan truyền sốt rét vào tháng 12/2021 là 0,042. Kết luận: An. dirus ưa đốt máu người và có khả năng lan truyền bệnh sốt rét và chứng minh được khả năng truyền sốt rét ở sinh cảnh trong rừng.

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