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Le infezioni respiratorie ricorrenti Epidemiologia e diagnosi ... - Sipps

Le infezioni respiratorie ricorrenti Epidemiologia e diagnosi ... - Sipps

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Viral involved in the pathogenesis of upper<br />

respiratory tract infections<br />

Rhinoviruses 30 - 40%<br />

Coronaviruses 10 – 15%<br />

Influenza viruses 5 -15%<br />

Respiratory syncytial virus 5%<br />

Parainfluenza viruses 5%<br />

Adenoviruses < 5%<br />

Enteroviruses < 5%<br />

Metapneumovirus ? Unknown ?<br />

Unknown 20 – 30%<br />

Heikkinen T. Lancet 2003; 361: 51–59<br />

?<br />

0 20 40 60 80 100<br />

Estimated annual proportion of cases

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