An ba da rahoton cewa, a birnin New York, kwararru daga Cibiyar Thompson, karkashin jagorancin Hugh Mason, sun gabatar da su a cikin DNA na dankalin turawa na yau da kullun, wani nau'in nau'in furotin da aka samu a cikin hanta masu ciwon hanta na kwayar cutar hepatitis B.
Lokacin da aka ciyar da berayen irin wannan dankalin, an gano cewa ƙwayoyin rigakafi sun bayyana a cikin jininsu, kuma an fara samun rigakafi kai tsaye daga cutar hanta.
Masu bincike a cibiyar Thompson sun yi imanin cewa samar da wannan rigakafin da ake ci zai ba da damar inganta yaki da cututtuka, musamman a kasashe masu tasowa inda ake bukatar gaggawa.
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