of;
Laboratory;
Medicine,;
Faculty;
of;
Applied;
Medical;
Sciences,;
Al;
Azhar;
University-Gaza,;
Palestine;
of;
Biological;
Sciences,;
Faculty;
of;
Science,;
Al;
Aqsa;
University-Gaza,;
Palestine;
of;
Biological;
Sciences,;
Faculty;
of;
Science,;
Al;
Azhar;
University-Gaza,;
Palestine.;
肠道致病菌; 病原体; 肠胃炎; 患病率; 幼儿园; 肠出血性大肠杆菌O157:H7; 加沙; 社区;