West Nile virus in Denver: Officials urge caution as health department investigates 6 suspected cases

People older than 60 years old or those with certain medical conditions such as being immunocompromised, diabetic, fighting cancer or those with kidney disease are most at risk of developing neuroinvasive disease, according to Daniel Pastula, an infectious disease specialist at UCHealth and chief of neuro-infectious diseases and global neurology at the University of Colorado School of Medicine and Colorado School of Public Health.