e martë, 21 gusht 2007

Bacteria play a part in most colds



Bacteria play a part in most colds. In some cases there is a general
infection, with local symptoms, as in grippe; in others there is a local
infection, with mixed classes of bacteria. It is probable that these
various forms of bacteria are constantly present in the nasal
secretions, but do not cause trouble until the local resistance or the
general resistance is in some way lowered.


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