The holiday virus is a viral disease that is one of the most common and dangerous viruses among children and adolescents. This virus affects the upper respiratory tract and can lead to serious complications such as pneumonia, bronchitis, sinusitis and other diseases. The holiday virus is known to be highly contagious (
English 
Chinese 
Spanish 
Indonesian 
French 
Portuguese 
Russian 
Japanese 
Turkish 
Deutsch 
Vietnamese 
Italian 
Polish 
Ukrainian 
Korean 
Dutch 
Swedish 
Azerbaijani 
Hungarian 
Bulgarian 
Norwegian 
Finnish 
Greek 
Czech 
Danish 