सनदेरनाया बेफोर बार-लामाफोरनि खामग्लाबनाय आरो बुनाय सोमजिहोयो आरो बिफोरखौ जोबोर गोबां गुंग्राय सोमजिहोयो।
The infection causes inflammation and swelling of these airways and makes them produce too much mucus.