A scientific study at the University of Basrah entitled "Study the Diarrheal Disease in Children Under 5 Years During the Covid-19 Pandemic in Basrah" prepared by Dr. Rajaa Ahmed at Al-Zahraa College of Medicine
 
The study, which was published in the "Annals of the Romanian Society for cell Biology", showed
 Determining the pattern of diarrheal diseases among children under the age of five during the Corona pandemic.
 The results revealed a monthly distribution of diarrheal cases during 2020 as a (U) shape pattern with the highest number in December (3719 admitted cases 47.6% ). The most common causative agent of diarrheal diseases was found to be Rotavirus followed by Entamoeba histolytica with the highest number of rotavirus in April and May while E. Histolytica recorded the highest number in December.

The study concluded that fluctuation of the incidence rate of diarrheal cases in under 5 years children during the years of 2019 and 2020 and rotavirus was discovered to be the most common pathogen, and the second most commonly isolated pathogen was found to be Entamoeba histolytica. And the main recommendation of the study is to focus on health programs to eliminate the causes of diarrhea in children, especially rotavirus and Entamoeba histolytica, particularly during the winter season.