የሽንት በሽታዎ ለመጀመሪያ ጊዜ መቼ እንደተከሰተ እና ከዚያ በኋላ ምን ያህል ጊዜ አለመመቸት እንደተከሰተ ማስታወሻ ይያዙ ።
It is to be noted that Respiratory Syncytial Virus affects in a severe manner the first time when it attacks a person and is not so heavy during the subsequent infections.