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What causes a runny nose in a child?
Last reviewed: 19.10.2021
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The main pathogens of acute rhinopharyngitis (rhinitis) are viruses. These are primarily rhinoviruses (45% of all cases), less often - PC virus, ECHO viruses, coronaviruses, parainfluenza viruses and adenoviruses, as well as influenza B viruses.
Bacterial pathogens are less common, but still cause a rhinopharyngitis (a common cold). Of these, the most frequent are Mycoplasma pneumoniae, much less often Chlamydoia pneumoniae, even less often Ch. Psittaci.
Pathogenesis of acute rhinopharyngitis
Acute rhinopharyngitis (rhinitis) - acute inflammation of the nasal passages of the mucous membrane, as well as of the mucous membrane and lymphoid elements of the posterior pharyngeal wall, accompanied by edema of the tissues and increased separation of the mucous secretions, or, conversely, increased dryness of the mucous membranes.