I-WHO ayicebisi iimaski zobuso ngokubanzi kubantu abasempilweni. Nangona kunjalo, i-CDC ngoku ibeke isikhokelo esitsha kwaye ithi "abantu mabanxibe imaski zelaphu xa bephuma ngaphandle". Ubungqina obutsha bucebisa ukuba ukusetyenziswa kweemaski zobuso botyando kunokuthintela ukusasazeka kwe-coronavirus yabantu kunye neentsholongwane zomkhuhlane kubantu abaneempawu.
Covid-19 intsholongwane ikhona kumoya ophefumlayo kunye nokukhohlela kwabantu abosulelekileyo kwaye isasazeka ngamathontsi aphuma emoyeni asuka kubantu abakhohlelayo kunye nokuthimla.
Kubekho ingxoxo malunga nokusebenza kakuhle kwe ukujongana nemaski ekunciphiseni ukusasazeka kwe intsholongwane. Umbutho wamazwe ngamazwe we-WHO awuwacebisi ngokubanzi kubantu abasempilweni. Nangona kunjalo, i-CDC ngoku ibeke isikhokelo esitsha kwaye ithi "abantu mabanxibe imaski zelaphu xa bephuma ngaphandle".
Kunxibelelwano olufutshane olupapashwe kwi-Nature Medicine nge-03 ka-Epreli 2020, abaphandi bafumanisa ukuba ukusetyenziswa kweemaski zobuso botyando kunokuthintela ukusasazeka kwe-coronavirus yabantu kunye nomkhuhlane. iintsholongwane ukusuka kubantu abaneempawu.
zemigudu intsholongwane Usulelo lusasazeka phakathi kwabantu ngokudibana, amathontsi okuphefumla kunye nee-aerosols ezincinci. Nangona kunjalo, kukho ukungaqiniseki malunga neendlela zosulelo lwe-COVID-19.
Kolu phononongo, abaphandi balinganisa inani le intsholongwane ekuphefumlweni okuphumayo kwabathathi-nxaxheba kwaye bamisela ukusebenza okunokwenzeka kweemaski zobuso botyando ekuthinteleni usulelo. Kubantu abavavanyiweyo abangama-3,363, abantu abangama-246 babonelele ngeesampulu zomoya ezikhutshiweyo. Bavavanye ukuchithwa kwentsholongwane kwi-swabs yeempumlo, i-swabs yomqala, iisampulu zamathontsi okuphefumla kunye neesampulu ze-aerosol kwaye bathelekisa ezi zimbini zokugqibela phakathi kweesampulu eziqokelelwe kunye okanye ngaphandle kwemaski yobuso.
Bafumanisa ukuba ukuchithwa kwentsholongwane kuphezulu kwimibhobho yeempumlo kunakwimiqala yomqala. Ngaphezu koko, bafumanisa intsholongwane ye-Corona kwi-30-40% iisampulu eziqokelelwe kubathathi-nxaxheba ngaphandle kweemaski zobuso kodwa akukho intsholongwane yafunyanwa kumathontsi kunye ne-aerosols eqokelelwe kwizigulana ezinxibe imaski yobuso.
Olu phononongo lubonise ukusebenza kweemaski zotyando ekunciphiseni ukufunyanwa kwe-coronavirus kunye neekopi zentsholongwane kumathontsi okuphefumla kunye nakwi-aerosols ecebisa ukuba iimaski zobuso botyando zinokusetyenziswa ngabantu abagulayo ukunciphisa ukuhanjiswa kwentsholongwane. intsholongwane.
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Imbekiselo:
Leung, NHL, Chu, DKW, Shiu, EYC et al. Ukuphefumla intsholongwane ukukhupha umoya ophefumlelweyo kunye nokusebenza kweemaski zobuso. Ipapashwe nge-03 kuTshazimpuzi 2020. Unyango lweNdalo (2020). DOI: https://doi.org/10.1038/s41591-020-0843-2
