To engage in a multi-center, prospective, masked clinical trial to investigate a non-invasive, rapid diagnostic test, the RPS Adeno Detector IV's ability to detect the presence of the adenovirus (ADV) antigen in cases of acute conjunctivitis by comparing it to cell culture with confirmatory immunofluorescence (CC-IFA). The polymerase chain reaction (PCR) will be used as a referee for discrepant cases.