= Medical notes == Common cold dt. Erkältung == Grippaler Infekt eo. malvarmumo ~200 species of viruses source: https://de.wikipedia.org/w/index.php?title=Erk%C3%A4ltung&oldid=262989294#Krankheitserreger The unexpected situation is that the name indicates a correlation between the temperature and getting sick. In general, the immune system might be more challenged in a cold environment. However, no empirical evidence was found that infection is more likely there. Recognize that cold weather implies that people aggregate more often in a dense space without refreshing air frequently. This is certainly a helpful environments for airborne infections. Recognize that cold occurs in the name of the disease in all romanic languages, some slavic languages, Greek, and Hungarian. 30–50% rhinovirus 10–15% corona virus 20 5% RSV 5% parainfluenza <5% adenovirus <5% enterovirus others unknown == Influenza Often more severe progress than common cold, but similar symptoms. Thus it should be distinguished medically.