Kev siv ntawmtshuaj tua kabnyob rau hauv lub tsev tuaj yeem muaj kev cuam tshuam loj heev rau kev txhim kho ntawm kev tiv thaiv kab mob yoov tshaj cum thiab txo cov kev ua haujlwm ntawm cov tshuaj tua kab.
Vector biologists los ntawm Liverpool School of Tropical Medicine tau luam tawm ib daim ntawv hauv The Lancet Americas Health tsom rau cov qauv ntawm kev siv tshuaj tua kab hauv tsev hauv 19 lub teb chaws uas muaj kab mob los ntawm cov kab mob xws li malaria thiab dengue.
Txawm hais tias ntau qhov kev tshawb fawb tau pom tias kev ntsuas kev noj qab haus huv rau pej xeem thiab kev siv tshuaj tua kab ua liaj ua teb ua rau muaj kev txhim kho ntawm cov tshuaj tua kab, cov ntawv tshaj tawm cov kws sau ntawv tau sib cav tias kev siv tsev neeg thiab nws cov kev cuam tshuam tseem tsis to taub. Qhov no yog qhov tseeb tshwj xeeb vim tias muaj kev tiv thaiv ntau ntxiv ntawm cov kab mob vector-yug thoob ntiaj teb thiab kev hem thawj uas lawv ua rau tib neeg noj qab haus huv.
Ib daim ntawv coj los ntawm Dr Fabricio Martins saib qhov cuam tshuam ntawm cov tshuaj tua kab hauv tsev rau kev txhim kho kev tiv thaiv hauv Aedes aegypti yoov tshaj cum, siv Brazil ua piv txwv. Lawv pom tias qhov zaus ntawm KDR kev hloov pauv, uas ua rau Aedes aegypti yoov tshaj cum los tiv thaiv cov tshuaj tua kab pyrethroid (feem ntau siv hauv cov khoom siv hauv tsev thiab kev noj qab haus huv), ze li ob npaug rau rau xyoo tom qab tus kab mob Zika tau qhia cov tshuaj tua kab hauv tsev rau kev ua lag luam hauv Brazil. Cov kev tshawb fawb hauv chav kuaj pom tias ze li ntawm 100 feem pua ntawm yoov tshaj cum uas muaj sia nyob raug tshuaj tua kab hauv tsev muaj ntau yam kev hloov pauv KDR, thaum cov neeg tuag tsis tau.
Txoj kev tshawb no tseem pom tau tias kev siv tshuaj tua kab hauv tsev yog dav, muaj li ntawm 60% ntawm cov neeg nyob hauv 19 thaj chaw muaj kab mob tsis tu ncua siv tshuaj tua kab hauv tsev rau kev tiv thaiv tus kheej.
Lawv sib cav tias cov ntaub ntawv tsis zoo thiab kev siv tsis raug cai tuaj yeem txo cov txiaj ntsig ntawm cov khoom no thiab tseem cuam tshuam rau cov kev ntsuas kev noj qab haus huv tseem ceeb xws li kev siv cov tshuaj tua kab thiab tshuaj tua kab hauv tsev.
Kev tshawb fawb ntxiv yog xav tau los tshuaj xyuas qhov cuam tshuam ncaj qha thiab tsis ncaj ntawm cov tshuaj tua kab hauv tsev, lawv cov kev pheej hmoo thiab txiaj ntsig rau tib neeg kev noj qab haus huv, thiab cuam tshuam rau cov phiaj xwm tswj hwm vector.
Daim ntawv tshaj tawm cov kws sau ntawv qhia tias cov neeg tsim cai tsim cov kev taw qhia ntxiv txog kev tswj cov tshuaj tua kab hauv tsev kom ntseeg tau tias cov khoom siv no siv tau zoo thiab nyab xeeb.
Dr Martins, tus kws tshawb fawb hauv vector biology, tau hais tias: "Qhov project no tau loj hlob los ntawm cov ntaub ntawv kuv tau sau thaum ua haujlwm nrog cov zej zog hauv Brazil kom paub tias vim li cas yoov tshaj cum Aedes tab tom txhim kho, txawm tias nyob hauv thaj chaw uas cov kev pabcuam kev noj qab haus huv tau tso tseg siv pyrethroids.
"Peb pab neeg tab tom nthuav dav kev tshuaj ntsuam mus rau plaub lub xeev nyob rau sab qaum teb hnub poob Brazil kom nkag siab zoo dua li cas cov tshuaj tua kab hauv tsev tau xaiv rau cov txheej txheem caj ces cuam tshuam nrog pyrethroid tsis kam.
"Kev tshawb fawb yav tom ntej ntawm kev tiv thaiv kab mob ntawm cov tshuaj tua kab hauv tsev thiab cov khoom noj qab haus huv rau pej xeem yuav yog qhov tseem ceeb rau kev txiav txim siab raws li pov thawj thiab kev txhim kho cov txheej txheem rau kev tswj hwm vector zoo."
Post lub sij hawm: May-07-2025