Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Ciwon mura ya kai kololuwa a lokacin hunturu, kuma saboda Arewacin Hemisphere da Kudancin Hemisphere suna da hunturu a lokuta daban-daban na shekara, a zahiri akwai lokutan mura daban-daban a kowace shekara. Wannan shine dalilin da ya sa Hukumar Lafiya ta Duniya (tare da taimakon Cibiyoyin Kula da Ciwon Zazzabi na Kasa) ke ba da shawarwari don magungunan rigakafi daban-daban guda biyu a kowace shekara; daya don Arewacin Hemisphere, ɗayan kuma don Kudancin Hemisphere.Tambaya mai daɗewa ita ce dalilin da ya sa annobar mura ke faruwa a yanayi maimakon a ko'ina cikin shekara. Wani bayani mai yiwuwa shi ne, saboda mutane suna cikin gida sau da yawa a lokacin hunturu, suna cikin kusanci da juna sau da yawa, kuma wannan yana inganta watsawa daga mutum zuwa mutum. Ƙarin tafiye-tafiye saboda lokacin hutun hunturu na Arewacin Hemisphere na iya taka rawa. Wani abu kuma shi ne, yanayin sanyi yana sa iska ta bushe, kuma hakan zai iya sa ƙwayoyin ƙazanta su bushe. Ƙananan ƙwayoyin bushewa sun fi sauƙi kuma suna iya kasancewa a cikin iska don tsawon lokaci. Kwayar cutar kuma tana rayuwa tsawon lokaci a saman yanayin zafi mai sanyi kuma yaduwar kwayar cutar a cikin iska yana da girma a cikin yanayin sanyi (ƙasa da 5 °C) tare da ƙarancin zafi. Ƙananan yanayin zafi a cikin hunturu ya zama babban dalilin yaduwar cutar mura a cikin yankuna masu zafi. Duk da haka, canje-canje na yanayi a cikin ƙwayoyin cuta kuma suna faruwa a yankuna masu zafi, kuma a wasu ƙasashe ana ganin waɗannan ƙwayoyin cuta a lokacin lokacin damina. Canje-canje na yanayi a cikin lambobin hulɗa daga lokacin makaranta, wanda shine babban abin da ke haifar da wasu cututtukan yara kamar su zazzabin cizon sauro da pertussis, na iya taka rawa a cikin mura. Haɗuwa da waɗannan ƙananan tasirin yanayi na iya ƙarfafawa ta hanyar haɓakar haɓaka tare da hawan cututtukan cututtukan ciki. H5N1 yana nuna yanayi a cikin mutane da tsuntsaye. Wani tunanin da zai bayyana yanayi a cikin cututtukan mura shine tasirin matakan bitamin D akan rigakafin cutar. Robert Edgar Hope-Simpson ne ya fara gabatar da wannan ra'ayin a shekarar 1965. Ya ba da shawarar cewa dalilin annobar mura a lokacin...  Tambaya: Menene babban dalilin yaduwar mura a yankunan da ke da yanayi mai sanyi?
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