Qhov ua tau zoo ntawm cov tshuaj tua kab tawm tsam yoov tshaj cum tuaj yeem sib txawv ntawm ntau lub sijhawm ntawm nruab hnub, nrog rau nruab hnub thiab hmo ntuj. Ib txoj kev tshawb fawb Florida pom tias cov yoov tshaj cum Aedes aegypti resistant rau permethrin yog rhiab heev rau cov tshuaj tua kab thaum ib tag hmo thiab hnub sawv. Kev tawm tsam tom qab ntawd nce ntxiv thoob plaws ib hnub, thaum yoov tshaj cum muaj zog tshaj plaws, peaking thaum tsaus ntuj thiab thawj ib nrab ntawm hmo ntuj.
Qhov kev tshawb pom ntawm kev tshawb fawb los ntawm cov kws tshawb fawb ntawm University of Florida (UF) muaj qhov cuam tshuam loj heev rautswj kab tsuagcov kws tshaj lij, tso cai rau lawv siv cov tshuaj tua kab kom zoo dua qub, txuag nyiaj, thiab txo lawv cov kev cuam tshuam ib puag ncig. “Peb pom tias cov koob tshuaj ntau tshaj ntawmpermethrinYuav tsum tua yoov tshaj cum thaum 6 teev tsaus ntuj thiab 10 teev tsaus ntuj Cov ntaub ntawv no qhia tias permethrin yuav siv tau zoo dua thaum siv thaum ib tag hmo thiab kaj ntug (6 teev sawv ntxov) dua thaum tsaus ntuj (ib ncig 6 teev tsaus ntuj), "said Lt. Sierra Schloop, tus kws sau ntawv ntawm txoj kev tshawb no. Txoj kev tshawb no tau luam tawm nyob rau hauv Phau ntawv Journal of Medical Entomology thaum Lub Ob Hlis Schloop, tus kws kho mob hauv U. ntawm University of Florida nrog rau Eva Buckner, Ph.D., tus kws sau ntawv laus.
Nws yuav zoo li kev nkag siab zoo tias lub sijhawm zoo tshaj plaws los siv tshuaj tua kab rau yoov tshaj cum yog thaum lawv feem ntau yuav buzz, flutter, thiab tom, tab sis qhov ntawd tsis yog ib txwm muaj, tsawg kawg hauv kev sim nrog permethrin, ib qho ntawm ob feem ntau siv yoov tshaj cum tshuaj tua kab hauv Tebchaws Meskas, uas tau siv hauv txoj kev tshawb no. Aedes aegypti yoov tshaj cum tom feem ntau thaum nruab hnub, ob qho tib si sab hauv tsev thiab sab nraum zoov, thiab nquag nquag tshaj li ob teev tom qab hnub tuaj thiab ob peb teev ua ntej hnub poob. Artificial teeb tuaj yeem txuas ntxiv lub sijhawm lawv tuaj yeem siv hauv qhov tsaus ntuj.
Aedes aegypti (feem ntau hu ua yoov tshaj cum daj) muaj nyob rau txhua lub teb chaws tshwj tsis yog Antarctica thiab yog tus kab mob rau cov kab mob uas ua rau chikungunya, dengue, yellow fever, thiab Zika. Nws tau txuas nrog kev sib kis ntawm ntau yam kab mob hauv Florida.
Txawm li cas los xij, Schluep tau sau tseg tias qhov muaj tseeb rau ib hom yoov tshaj cum hauv Florida yuav tsis muaj tseeb rau lwm cheeb tsam. Ntau yam, xws li qhov chaw nyob, tuaj yeem ua rau cov genome sequencing ntawm ib qho yoov tshaj cum txawv ntawm Chihuahuas thiab Great Danes. Yog li ntawd, nws tau hais tias, txoj kev tshawb nrhiav pom tsuas yog siv rau cov yoov tshaj cum daj hauv Florida.
Txawm li cas los xij, muaj ib qho lus ceeb toom, nws hais. Qhov kev tshawb pom ntawm qhov kev tshawb fawb no tuaj yeem nthuav dav dav los pab peb nkag siab zoo dua lwm cov neeg ntawm hom.
Ib qho kev tshawb nrhiav tseem ceeb ntawm txoj kev tshawb fawb pom tau tias qee cov noob uas tsim cov enzymes uas metabolize thiab detoxify permethrin kuj cuam tshuam los ntawm kev hloov hauv lub teeb siv lub sijhawm 24-teev. Txoj kev tshawb no tsom rau tsuas yog tsib lub noob, tab sis cov txiaj ntsig tuaj yeem raug ntxiv rau lwm cov noob sab nraud txoj kev tshawb fawb.
Schluep tau hais tias "Vim tias peb paub dab tsi peb paub txog cov txheej txheem no thiab hais txog yoov tshaj cum biology, nws ua rau muaj kev nkag siab zoo kom nthuav tawm lub tswv yim no dhau ntawm cov noob no thiab cov neeg qus no," Schluep tau hais.
Cov kev qhia lossis kev ua haujlwm ntawm cov noob no pib nce tom qab 2 teev tsaus ntuj thiab nce siab hauv qhov tsaus ntuj thaum 6 teev tsaus ntuj thiab 2 teev sawv ntxov Schlup taw qhia tias ntawm ntau cov noob koom nrog hauv cov txheej txheem no, tsuas yog tsib tau kawm. Nws hais tias qhov no yuav yog vim tias thaum cov noob no ua haujlwm hnyav, detoxification tau txhim kho. Cov enzymes tuaj yeem khaws cia rau kev siv tom qab lawv cov khoom lag luam qeeb.
"Kev nkag siab zoo dua ntawm kev hloov pauv hauv lub sijhawm ntev hauv cov tshuaj tua kab tiv thaiv kev sib kho los ntawm kev tshem tawm cov enzymes hauv Aedes aegypti tuaj yeem tso cai rau kev siv tshuaj tua kab thaum lub sijhawm uas muaj kev cuam tshuam ntau tshaj plaws thiab kev ua kom tshem tawm cov enzymes qis tshaj," nws hais.
"Diurnal hloov pauv hauv permethrin rhiab heev thiab metabolic gene qhia hauv Aedes aegypti (Diptera: Culicidae) hauv Florida"
Ed Ricciuti yog ib tug neeg sau xov xwm, kws sau ntawv, thiab tus kws tshaj lij uas tau sau ntawv rau ntau tshaj li ib nrab xyoo pua. Nws phau ntawv tshiab kawg yog Backyard Bears: Cov Tsiaj Loj, Suburban Sprawl, thiab New Urban Jungle (Countryman Press, Lub Rau Hli 2014). Nws cov hneev taw muaj thoob plaws ntiaj teb. Nws tshwj xeeb hauv xwm, kev tshawb fawb, kev txuag, thiab kev cai lij choj. Nws ib zaug yog tus saib xyuas ntawm New York Zoological Society thiab tam sim no ua haujlwm rau Wildlife Conservation Society. Tej zaum nws yuav yog tib tus neeg ntawm Manhattan Txoj Kev 57th uas tau raug lub tsho tiv no.
Aedes scapularis yoov tshaj cum tau pom yav dhau los ib zaug, xyoo 1945 hauv Florida. Txawm li cas los xij, txoj kev tshawb fawb tshiab ntawm cov yoov tshaj cum uas tau sau hauv xyoo 2020 pom tias Aedes scapularis yoov tshaj cum tau tsim lawv tus kheej hauv Miami-Dade thiab Broward counties ntawm Florida av loj. [Nyeem ntxiv]
Cone-headed termites yog nyob rau Central thiab South America thiab pom nyob rau hauv tsuas yog ob qhov chaw hauv Tebchaws Meskas: Dania Beach thiab Pompano Beach, Florida. Kev tshuaj ntsuam genetic tshiab ntawm ob pawg neeg qhia tias lawv pib los ntawm tib qho kev cuam tshuam. [Nyeem ntxiv]
Tom qab qhov kev tshawb pom tias yoov tshaj cum tuaj yeem txav mus deb tau ntev los ntawm kev siv cua txias siab, kev tshawb fawb ntxiv yog nthuav dav hom thiab ntau hom yoov tshaj cum koom nrog hauv kev tsiv teb tsaws - yam uas paub tseeb tias yuav ua rau muaj kev nyuaj siab los tiv thaiv kev kis tus kab mob malaria thiab lwm yam kab mob yoov tshaj cum nyob hauv Africa. [Nyeem ntxiv]
Post lub sij hawm: May-26-2025