to qualify as being ill
based on personal and cultural definitions .
The development of a " cold - like illness " ( CLI ) usually requires infection with an upper respiratory virus such as rhinovirus , influenza virus , respiratory syncytial virus , parainfluenza virus , coronavirus or adenovirus , among others , and the development of sufficient signs , symptoms and pathophysiologies to qualify as being ill based on personal and cultural definitions .
The development of a " cold - like illness " ( CLI ) usually requires infection with an upper respiratory virus such as rhinovirus , influenza virus , respiratory syncytial virus , parainfluenza virus , coronavirus or adenovirus , among others , and the development of sufficient signs , symptoms and pathophysiologies to qualify as being ill based on personal and cultural definitions .