This document summarizes a study identifying Parainfluenza virus 4 in humans in Najaf, Iraq between 2012-2013. Nasal swabs and blood samples were collected from 320 individuals and tested using rapid tests and RT-PCR. Thirty-three samples tested positive for Parainfluenza virus 4 using virus-specific primers in RT-PCR. The study concludes that RT-PCR is a rapid and sensitive method for identifying Parainfluenza virus 4 that could be used to diagnose infections.