Experiment 29: Brigitte Berger Bächi	BBOM 10th ed. (1)
	Microbiota of the nose. pdf Body surfaces such as skin and mucous membranes are colonized by large numbers of microorganisms that are highly adapted to their particular environment. These organisms, also called commensals, constitute the body's normal flora. Positive effects of commensals are the continuous stimulation of the immune system of the host and protection from pathogens. When members of the normal flora from one anatomical site gain access to an otherwise sterile location, then infection may result. Sometimes these are relatively trivial, but others may be life-threatening.	21.1 - 21.8 21.9 - 21.14 26.9
	(1) Madigan M.T., J.M. Martinko and J. Parker: "Brock - Biology of Microorganisms", Prentice Hall, 10th Ed. 2003
	Die pdf Files der Kursanleitungen können auf die Festplatte des Computers kopiert und im vergrösserten A4 Format ausgedruckt werden.