I-Influenza B Virus Nucleic Acid

Igciwane lomkhuhlane, uhlobo olumele i-Orthomyxoviridae, liyigciwane elisongela kakhulu impilo yabantu futhi lingathelela abantu abaningi. Izifo zomkhuhlane wezikhathi zonyaka zithelela abantu ababalelwa ezigidini ezingama-600 emhlabeni wonke futhi zibangela ukufa kwabantu abangu-250,000 kuya ku-500,000 minyaka yonke, okuyigciwane lomkhuhlane u-B ongenye yezimbangela ezinkulu.^[1]. Igciwane loMkhuhlane B, elaziwa nangokuthi i-IVB, i-RNA enomucu owodwa onegayo. Ngokulandelana kwe-nucleotide yesifunda sayo se-HA1 ye-antigenic, ingahlukaniswa ngemigqa emibili emikhulu, izinhlobo ezimele i-B/Yamagata/16/88 kanye ne-B/Victoria /2/87(5)^[2]. Igciwane lomkhuhlane B ngokuvamile linokucaciswa okuqinile kosokhaya. Kutholwe ukuthi i-IVB ingathelela abantu kuphela kanye nezimpawu, futhi ngokuvamile ayibangeli ubhubhane lomhlaba wonke, kodwa ingabangela izifo eziwumshayabhuqe zenkathi yesifunda.^[3]. Igciwane lomkhuhlane B lingasakazwa ngezindlela ezihlukahlukene ezifana nomgudu wokugaya ukudla, umgudu wokuphefumula, ukulimala kwesikhumba kanye ne-conjunctiva. Izimpawu ngokuyinhloko imfiva ephezulu, ukukhwehlela, ikhala eligijimayo, i-myalgia, njll. Iningi lazo lihambisana nenyumoniya enzima, ukuhlaselwa yinhliziyo okukhulu. Ezimweni ezimbi kakhulu, ukwehluleka kwenhliziyo, izinso nezinye izitho kuholela ekufeni, futhi izinga lokufa liphezulu kakhulu^[4]. Ngakho-ke, kunesidingo esiphuthumayo sendlela elula, enembile futhi esheshayo yokuthola igciwane lomkhuhlane B, elinganikeza isiqondiso semithi yokwelapha kanye nokuxilongwa.