Wanasayansi wanaonya hatari ya virusi vya korona kutoka popo Afrika Mashariki

Wanasayansi kutoka Uingereza na Kenya wamegundua virusi vipya vya korona kutoka popo vinavyoweza kuingia kwenye seli za binadamu. Utafiti uliochapishwa katika jarida la Nature unaonyesha hatari katika Kenya, Tanzania Kaskazini na Sudan Mashariki. Hakuna ushahidi wa maambukizi kwa binadamu hadi sasa.

Watafiti kutoka Taasisi ya Pirbright nchini Uingereza na Kenya Medical Research Institute (KEMRI) wamechunguza virusi vya korona katika wanyama pori Afrika Mashariki. Utafiti wao uligundua virusi CcCoV-KY43 katika popo wa moyo-mdomo nchini Kenya, Tanzania Kaskazini na Sudan Mashariki.

Mtihani wa maabara ulionyesha virusi hivi vinaweza kushikamana na vipokezi kwenye seli za mapafu ya binadamu, hatua muhimu kwa maambukizi. Dr James Nyagwange wa KEMRI alishiriki katika utafiti huu.

Dr Dalan Bailey wa Taasisi ya Pirbright alisema, “Kabla ya utafiti wetu, kulidhani alphacoronaviruses zinatumia vipokezi moja au mbili pekee. Sasa tunajua zinaweza kutumia vipokezi vingi zaidi.” Profesa Stephen Graham wa Chuo Kikuu cha Cambridge aliongeza, “Sasa tunapojua hatari hii iliyokuwepo daima, tunaweza kujiandaa nayo.”

Watafiti walitumia tu protini za spike za virusi, si virusi kamili, ili kupunguza hatari maabada. Hakuna ushahidi wowote wa virusi hivi kuwa vimeambukiza binadamu, na vipimo vilivyo fanywa Kenya na eneo la Afrika Mashariki vinaonyesha hakuna spillover.

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