Nkọwa zuru ezu
Ọrịa ịba ọcha n'anya A bụ nje ịba ọcha n'anya A (HAV) na-ebutekarị ya site n'ụzọ fecal-onu, nke ka ukwuu site na ndị ọrịa.The incubation oge nke ịba ọcha n'anya A bụ 15 ~ 45 ụbọchị, na nje na-emekarị ugbu a n'ọbara onye ọrịa na feces 5 ~ 6 ụbọchị tupu transcarbidine elu.Mgbe izu 2 ~ 3 gachara, site na mmepụta nke ọgwụ mgbochi ụfọdụ na serum, nje na-efe efe nke ọbara na nsị nke nta nke nta na-apụ n'anya.N'oge ọrịa ịba ọcha n'anya A nke pụtara ìhè ma ọ bụ mgbaasị, ahụ nwere ike imepụta ọgwụ mgbochi.Enwere ụdị mgbochi abụọ (anti-HAV) na serum, mgbochi HAVIgM na mgbochi HAVIgG.Anti-HAVIgM na-apụta n'oge, a na-achọpụtakarị n'ime ụbọchị ole na ole nke mmalite, na oge jaundice na-arị elu, nke bụ ihe dị mkpa maka nchọpụta mmalite nke ịba ọcha n'anya A. Anti-HAVIgG na-apụta n'oge ma na-adịte aka, na-abụkarị ihe na-adịghị mma na mmalite nke ọrịa, na mgbochi HAVIgG ziri ezi na-egosi ọrịa HAV gara aga ma na-ejikarị eme nchọpụta ọrịa epidemiological.Nnyocha microbiological nke ịba ọcha n'anya A na-adabere na antigens na mgbochi nje nke nje ịba ọcha n'anya A.Ụzọ ngwa gụnyere microscopy immunoelectron, nyocha njide mmeju, nnwale hemagglutination immunoadhesion, radioimmunoassay siri ike na nyocha immunosorbent jikọtara enzyme, mmeghachi omume nke polymerase, teknụzụ cDNA-RNA molecular hybridization, wdg.