Xa kuvela ubhubhane we-chikungunya, ngubani owokuqala ukukhomba intsholongwane emva kwawo?
Xa i-Ebola itshabalalisa iindawo ezithile zaseAfrika, ngubani “osondeleyo kwaye osondeleyo” ngayo ngaphakathi kwelebhu?
Impendulo ifihliwe ngaphakathi kohlobo oluthile lwenqaba ekhethekileyo—ekhuselekileyo njengegumbi lokugcina impahla ebhankini:ilebhu yokhuseleko lwezinto eziphilayo.
Namhlanje, masivule ikhuselo kwaba bagcini abangabonakaliyo size sibone indlela abayisebenzisa ngayo isayensi ukwakha umgca wokuzikhusela ebomini.
Iilabhoratri nazo "zinamanqanaba okhuseleko"? Ukusuka kwi-kindergarten ukuya kwi-special forces!
Usenokungazi oku, kodwa iilabhoratri nazo ziza “ngamanqanaba,” njengokunyuka kwinqanaba kumdlalo—okukhona ingozi iphezulu, kokukhona izixhobo ziphucuka ngakumbi.
Ngokusekelwe kumanyathelo okukhusela asetyenziswa kwiintsholongwane ezibangela izifo, iilabhoratri zahlulwe zangamanqanaba amane (Ukusuka kwi-BSL-1 ukuya kwi-BSL-4).
I-BSL-1: "Isikolo sabantwana abancinci" sehlabathi lelebhu
Oko bakufundayo:Iintsholongwane ezenzahayizibangela izifo ebantwini okanye kwizilwanyana—“abantwana abalungileyo” abangenabungozi, njengebhaktheriya ye-lactic acid esetyenziselwa ukwenza iyogathi.
Inqanaba loKhuseleko:Ijazi lelebhu + iiglavu, ngokusisiseko ziyafana nococeko oluhle lwasekhitshini.
Apho uyibonile khona:Ilebhu eqhuba uvavanyo lwakho lwezonyango rhoqo idla ngokuba ngolu hlobo.
I-BSL-2: "Isikhululo sabalindi" sempilo yoluntu
Oko bakufundayo:Iintsholongwane ezinokubangela ukuba abantu okanye izilwanyana bagule, kodwa iimpawu zihlala zincinci kwaye azifane zibulale—njengeentsholongwane zomkhuhlane kunye neSalmonella.
Ngamanye amazwi, “abaphembeleli beengxaki abalawulekayo”: banokubangela ukugula, kodwa abanakuthintelwa, kwaye thinadondineendlela zokuzilawula.
Inqanaba loKhuseleko:Iphuculwe! Ifuna iikhabhathi zokhuseleko lwezinto eziphilayo, ii-autoclaves, kunye nezixhobo zokukhusela zonyango.
Apho uyibonile khona:Iilabhoratri ezininzi zesibhedlele kunye neelabhoratri zempilo yoluntu ezifana ne-CDC ziwela kolu luhlu.
I-BSL-3: "Iziko lomyalelo" wezifo ezinobungozi obukhulu
Oko bakufundayo:Iintsholongwane ezinokubangela izifo ezinzima okanye ezibulalayo—izinto ezisongela “abaphathi” ezinzulu ezifana ne-SARS-CoV-2, isifo sephepha iMycobacterium, kunye neentsholongwane zomkhuhlane weentaka ezibangela izifo ezininzi.
Inqanaba loKhuseleko:Uphuculo olupheleleyo!
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a. “Intolongo” enoxinzelelo olubi: Uxinzelelo lomoya ngaphakathi luhlala luphantsi kunangaphandle (malunga ne-30 Pa), ngoko ke umoya uphuma kwipaseji ecocekileyo ungene kwilebhu kuphela. Umoya ongaphakathi kwilebhu—mhlawumbi uthwele ii-aerosols zentsholongwane—awunakukwazi ukuphuma umva. Indlela yokuphuma ivaliwe ngokupheleleyo.
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b. “Inethi yokucoca” ephindwe kabini: Umoya ophumayo kufuneka udlule kwiifilitha ze-HEPA, uvale i-99.97% yeentsholongwane kunye neebhaktheriya—amasuntswana amancinci njenge-0.3 microns awangeni.
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c. Zixhotyiswe ngokupheleleyo: Abasebenzi baseLabhoratri baba “ziingcali zePPE ezipheleleyo,” benxibe izigqubuthelo zobuso + ii-respirator ze-N95 + izihlangu zobuso.
Yintoni eyenza ibe namandla:Ilebhu ye-BSL-3 ifana "nentolongo yesayensi" eyakhelwe ngokukodwa ukugcina nokufunda iintsholongwane eziyingozi—eziyingozi kakhulu kwaye zisasazeka kakhulu, kodwa apha, azinakuphuma.
I-BSL-4: Inqaba yokugqibela yokhuseleko lwezinto eziphilayo
Oko bakufundayo:Iintsholongwane eziyingozi kakhulu—zisasazeka ngokukhawuleza, kunzima ukuzinyanga, kwaye ngamanye amaxesha azinalo unyango oluqinisekileyo—njenge-Ebola virus kunye ne-smallpox virus.
Inqanaba loKhuseleko:Isilingi. Inqanaba eliphezulu kakhulu.
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a. I-capsule evaliweyo: Ilebhu ifana nemodyuli yesithuba ezimeleyo, ehlukanisiweyo ngokupheleleyo nehlabathi langaphandle.
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b. Inkqubo yokuxhasa ubomi: Abaphandi banxiba “iisuti zasesibhakabhakeni” ezinee-air supply zabo—ngoko ke nokuba kukho into eyonakeleyo, abayi kuphefumla umoya wangaphandle.
Hayi indlela engaqhelekanga ngayo:Zimbalwa kakhulu kuzwelonke—ngokwenene “isixhobo esibalulekileyo” sempilo yoluntu.
Iileya ezintlanu zokuzikhusela: iintsholongwane azikwazi ukubaleka—nokuba zineempiko!
Ukhathazekile ngokuvuza kwelebhu? Le nkqubo yokukhusela iqinile kunegumbi lokugcina impahla elisebhankini—uhlobo lwenzululwazi lodonga lwesinyithi.
Umaleko wokhuseleko — Iindlela zokulinganisa eziphambili — Injani
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a. Ukhuselo lwesakhiwo: Iindonga ezikhethekileyo zentsimbi engagqwaliyo kunye nomgangatho ongenamthungo — njengezixhobo zokuzikhusela kwiimbumbulu
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b. Ukhuselo lwezixhobo: Iikhabhathi zokhuseleko lwebhayoloji (zibamba iintsholongwane ezingama-99.97%), ii-autoclaves (zicocwe kwiintsholongwane kwi-121°C) — “i-super-range hood” + “i-incinerator”
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c. Ukhuseleko lwenkqubo: Iindlela zokusebenza ezisemgangathweni zokungena/zokuphuma, ukusetyenziswa kwezixhobo, kunye neenkqubo — umgca wokuhlanganisa ngokuchanekileyo
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d. Ukhuselo lwabantu: Iziqinisekiso zenqanaba elithathu (ithiyori + ukulinganisa + uqheliso), ukujonga impilo rhoqo + ukugonywa — inkampu yoqeqesho lwemikhosi ekhethekileyo
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e. Ukhuselo olukrelekrele: Iingcango ezinxibelelana ne-Airlock (iingcango ezimbini azinakuvulwa ngaxeshanye), ukujonga okusingqongileyo imini nobusuku kunye nezilumkiso — ulawulo lokufikelela kwinqanaba lesayensi-fi
Ukungaqondani okuqhelekileyo malunga neelabhoratri…
Ukungaqondi kakuhle 1: Iilebhu ezingaphezulu = ingozi engaphezulu.
Iilabhoratri zobungcali ngokwenene zenza umsebenzi onobungozi obukhuluikhuselekile—njengendlela iikliniki zomkhuhlane ezinceda ngayo ukuba ukuqhambuka kwezifo kuhlale kulawulwa.
Ukungaqondi kakuhle 2: Inqanaba eliphezulu = kulula ukuvuza.
Okuchaseneyo noko. Iilabhoratri ze-BSL-4 bezisebenza kwihlabathi liphela kangangeminyaka engaphezu kwama-60, kwaye zithathu kuphela iingozi ezibikiweyo kwihlabathi liphela (zonke zibangelwe yimpazamo yokusebenza komntu). I-China igcine irekhodi leminyaka eli-10 lokungabikho kweengozi.
Ukungaqondi kakuhle 3: Oku akunanto yakwenza nabantu abaqhelekileyo.
Iigonyo zabantwana, uhlolo lomkhuhlane lwaminyaka le, uvavanyo lokhuseleko lokutya… ezi lebhu zikhusela ngokuthe cwaka yonke into enxulumene nobomi bemihla ngemihla.
Ixesha leposi: Jan-20-2026
