KwakungoSeptemba ka-2018, kwaye uVandenberg, owayeneminyaka engama-67 ngelo xesha, wayeziva “ephantsi kwemozulu” kangangeentsuku ezimbalwa, ngokungathi wayenomkhuhlane, utshilo.
Waqala ukudumba kwengqondo. Waphelelwa ngamandla okufunda nokubhala. Iingalo nemilenze yakhe yayingasasebenzi kakuhle ngenxa yokungakwazi ukusebenza kakuhle.
Nangona kule hlobo kubonakale usulelo lokuqala lwasekuhlaleni kwiminyaka engamashumi amabini yesifo esinxulumene neengcongconi, imalariya, yintsholongwane yaseWest Nile kunye neengcongconi eziyisasazayo ezixhalabisa kakhulu amagosa ezempilo karhulumente.
URoxanne Connelly, ingcali yezinambuzane kwiZiko loLawulo lweZifo kunye nokuThintela (CDC), uthe ezi zinambuzane, uhlobo lwengcongconi ebizwa ngokuba yiCulex, zezona "ngxaki zixhalabisayo kakhulu okwangoku kwilizwekazi lase-United States"
Kubonakala ngathi ixesha lemvula elingaqhelekanga kulo nyaka ngenxa yemvula kunye nekhephu elinyibilikayo, kunye nobushushu obuphezulu, kukhokelele ekwandeni kwenani leengcongconi.
Kwaye ngokutsho kwezazinzulu zeCDC, ezi ngcongconi ziya zisiba nokumelana ngakumbi nezibulali zinambuzane ezifumaneka kwizitshizi ezininzi ezisetyenziswa luluntu ukubulala iingcongconi namaqanda azo.
“Ayilophawu lulungileyo olo,” utshilo uConnelly. “Silahlekelwa zezinye zezixhobo esizisebenzisa rhoqo ukulawula iingcongconi ezichaphazelekileyo.”
KwiLebhu yeZinambuzane yeZiko loLawulo lweZifo kunye noThintelo eFort Collins, eColorado, ekukho kuyo amashumi amawaka eengcongconi, iqela likaConnelly lifumanise ukuba iingcongconi zaseCulex ziphila ixesha elide emva kokuchatshazelwaizibulali-zinambuzane.
“Ufuna imveliso ebadidayo, kungekhona ebenza badideke,” utshilo uConnelly, ekhomba kwibhotile yeengcongconi ezivezwe kwiikhemikhali. Abantu abaninzi basabhabha.
Uvavanyo lwelabhoratri alufumananga mandla kwimithi yokubulala izinambuzane esetyenziswa ngabantu ukugxotha iingcongconi xa benyuka intaba nakwezinye izinto ezingaphandle. UConnelly uthe ziyaqhubeka nokusebenza kakuhle.
Kodwa njengoko izinambuzane ziba namandla ngaphezu kwezibulali-zinambuzane, inani lazo liya lisanda kwezinye iindawo zelizwe.
Ukusukela ngo-2023, bekukho amatyala angama-69 abantu osulelo lwentsholongwane yeWest Nile axeliweyo eMelika, ngokutsho kweZiko loLawulo lweZifo kunye nokuThintela. Oku akukabikho rekhodi: ngo-2003, amatyala angama-9,862 arekhodwa.
Kodwa emva kweminyaka engamashumi amabini, iingcongconi ezininzi zithetha amathuba amakhulu okuba abantu balunywe baze bagule. Amatyala eWest Nile adla ngokuba maninzi ngo-Agasti nangoSeptemba.
“Oku kukuqala nje kwendlela esiza kubona ngayo iWest Nile iqala ukwenzeka eMelika,” utshilo uGqr. Erin Staples, ingcali yezifo ezisasazekayo kwezonyango kwiZiko loLawulo lweZifo kunye nokuThintela eFort Collins. “Silindele ukuba amatyala anyuke ngokuthe chu kwiiveki ezimbalwa ezizayo.
Umzekelo, imigibe yeengcongconi eyi-149 eMaricopa County, eArizona, ifunyenwe inentsholongwane yeWest Nile kulo nyaka, xa ithelekiswa neyesibhozo ngo-2022.
UJohn Townsend, umphathi wolawulo lwevektha kwiMaricopa County Environmental Services, uthe amanzi amileyo avela kwimvula enkulu kunye nobushushu obugqithisileyo kubonakala ngathi kwenza imeko ibe mandundu.
“Amanzi alapho avuthiwe ukuze iingcongconi zibeke amaqanda kuzo,” utshilo uTownsend. “Iingcongconi ziqandusela ngokukhawuleza emanzini afudumeleyo – kwiintsuku ezintathu ukuya kwezine, xa kuthelekiswa neeveki ezimbini emanzini abandayo,” utshilo.
UJuni onemvula engaqhelekanga eLarimer County, eColorado, apho ikhoyo ilebhu yaseFort Collins, ukwabangele “ubuninzi obungazange bubonwe ngaphambili” beengcongconi ezinokusasaza intsholongwane yeWest Nile, utshilo uTom Gonzalez, umlawuli wezempilo yoluntu wesithili.
Idatha yesithili ibonisa ukuba kukho iingcongconi eziphindwe kahlanu eWest Nile kulo nyaka kunangonyaka ophelileyo.
UConnelly uthe ukukhula koqoqosho kwezinye iindawo zelizwe “kuyaxhalabisa kakhulu.” “Kwahlukile koko sikubonileyo kwiminyaka embalwa edlulileyo.”
Ukususela oko intsholongwane yeWest Nile yafunyanwa okokuqala eMelika ngo-1999, iye yaba sisifo esixhaphakileyo esithwalwa ziingcongconi kweli lizwe. UStaples uthe amawaka abantu asuleleka minyaka le.
I-West Nile ayisasazeki ukusuka komnye umntu ukuya komnye ngokudibana nje okuqhelekileyo. Le ntsholongwane isasazwa kuphela ziingcongconi zaseCulex. Ezi zinambuzane zisuleleka xa ziluma iintaka ezigulayo zize emva koko zisasaze intsholongwane ebantwini ngokuluma kwakhona.
Uninzi lwabantu aluziva nto. Ngokutsho kwe-CDC, umntu omnye kwabahlanu uba nomkhuhlane, intloko ebuhlungu, iintlungu zomzimba, ukuhlanza kunye norhudo. Iimpawu zihlala zibonakala emva kweentsuku ezi-3-14 emva kokuluma.
Umntu omnye kwabayi-150 abosulelwe yintsholongwane yeWest Nile uba neengxaki ezinkulu, kuquka nokufa. Nabani na angagula kakhulu, kodwa uStaples uthe abantu abangaphezu kweminyaka engama-60 kunye nabantu abaneengxaki zempilo ezingaphantsi basengozini enkulu.
Emva kweminyaka emihlanu efunyaniswe eneWest Nile, uVandenberg uphinde wafumana amandla akhe amaninzi ngonyango oluqatha lomzimba. Nangona kunjalo, imilenze yakhe yaqhubeka nokungaziva mnandi, nto leyo eyamnyanzela ukuba axhomekeke kwizinduku.
Xa uVandenberg wawa ngaloo ntsasa ngoSeptemba 2018, wayesendleleni eya emngcwabeni womhlobo wakhe owayesweleke ngenxa yeengxaki zentsholongwane yeWest Nile.
Esi sifo “sinokuba sibi kakhulu kwaye abantu kufuneka bazi loo nto. Singatshintsha ubomi bakho,” utshilo.
Nangona ukuxhathisa izibulali-zinambuzane kusenokukhula, iqela likaConnolly lifumanise ukuba izibulali-zinambuzane eziqhelekileyo abantu abazisebenzisayo ngaphandle zisasebenza. Ngokutsho kweZiko loLawulo lweZifo kunye nokuThintela (CDC), kungcono ukusebenzisa izibulali-zinambuzane eziqulethe izithako ezifana ne-DEET kunye ne-picaridin.
Ixesha leposi: Matshi-27-2024