This study was conducted to find out the extent of the presence of mixed viral infections for elderly peoplewith and without acute enteritis. 100 stool samples were collected, 50 samples of which were for peoplewith acute enteritis and the other 50 samples were from non-infected people. These mixed infections wereobtained within the group of infected patients, where the age group 45-49 was the most infected and thenthe sample was prepared by making several treatments For the purpose of performing the PCR moleculartest. As the results of this test indicated that 15 samples contain Astrovirus from the total number of samples.And 7 samples containing norovirus from the total number of samples. while the test recorded 10 samplescontaining the sapovirus from the total number of samples. The study showed that the relationship betweenacute gastroenteritis and gender revealed that male infection is close to female infection, as there is nosignificant difference between them. In regard to mixed infection the study showed that the number ofsamples infected with Rota, Adeno, and Astro viruses was 4 positive samples, while the number of samplescontaining Rota adenonoro is only one positive sample is the same as the number of samples containingonly Astro and Noro that were recorded as a result of acute enteritis. The results also indicated that threecoinfection positive samples of rota, adeno and sapo. As tested by Rapid test and PCR technique.