Historia inaanza miaka zaidi ya million 82 iliyopiya ambapo virusi vinavyosababisha Homa ya inni (Hepatitis B) viligunduliwa uko afrika ya kaskazini mapoja na masharikI ya kati huku wataalamu wakidai kwamba virusi ivyo vilitokana na ndege pamoja na samaki kisha vikaenda kwa binadam. Ni miaka...
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