Fayrasyada waxay gaadhi karaan sambabada iyada oo loo marayo dhowr waddo oo kala duwan. Fayrasyada neefsashada ayaa sida caadiga ah la qaadaa marka dadku taabtaan walxaha wasakhaysan ka dibna waxay taabtaan indhahooda ama sanka. Caabuqyada kale ee fayrasku waxay dhacaan marka dhibcaha hawada ee wasakhaysan ay neefsadaan afka ama sanka. Marka ay maraan hawo-mareenka sare, fayrasyada waxay gali karaan sambabada, halkaas oo ay ku soo duulaan unugyada huwan hawo-mareenka, alveoli, ama parenchyma sambabada. Qaar ka mid ah fayrasyada sida jadeecada iyo herpes simplex ayaa laga yaabaa inay ku gaaraan sambabada dhiigga.
sambabada