Progress on the correlation between virus types and viral load and severity of viral pneumonia in children
Community acquired pneumonia(CAP)is the leading cause of death in children,and as molecular diagnostic techniques continue to improve,more CAP is found to be caused by viral infections.At present,many factors are known to affect the severity of viral pneumonia,including viral subtypes,viral virulence,host factors,environmental factors,etc.Some studies have found that viral load is related to the severity of viral pneumonia,and different viral load levels have different effects on the severity of viral pneumonia.The correlation with virus type,subtype,site of virus specimen collection,age,sex and co-infection may be also different.This article will review the relationship between viral load and disease severity in pneumonia caused by common respiratory viral infections.
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