A viral upper respiratory tract infection ( vURTI ) in the absence of overt illness ( subclinical vURTI ) will not be made manifest to the individual or to observers
The degree of illness <*> is directly related to the extent of provoked inflammation ,
A viral upper respiratory tract infection ( vURTI ) in the absence of overt illness ( subclinical vURTI ) will not be made manifest to the individual or to observers and , therefore , will not be diagnosed as a CLI .
The degree of illness occurring during a vURTI is directly related to the extent of provoked inflammation , which in turn depends on the engagement of antiviral defense systems .