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 .
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 .
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 .