Background: Childhood diarrhea remains one of the leading causes of preventable mortality and disease burden throughout the developing world. It generated by several pathologic states, most commonly infections. Although the human large intestine ordinarily harbors a huge microbial population, most bacteria, protozoan, and viral agents of diarrhea are not members of this normal gut flora, but are aquired through contaminated food or water.
Objective: This study was conducted to investigate the main microbial causative agent of diarrhea in children below five years of age, and to evaluate the relationship between the incidence of diarrhea with sex and age group of the patients.
Patients and Methods: Total of two hundred twenty three

Back ground: Viruses may be involved in the pathogenesis of Type 1 Diabetes Mellitus (T1DM), either through direct β-cell infection or as triggers of
autoimmunity.
Objective: To investigate the presence of specific anti- viral IgG antibodies for Coxsackie virus type B (CVB5), Poliovirus, and Adenovirus which proposed to be
involved in the etiology of T1DM.
Subjects & methods: A total of 60 Iraqi T1DM children were included in the presents study. They were new onset of the disease (diagnosis was from one week up
to five months). For the purpose of comparisons, 50 apparently healthy control subjects were selected. Serum IgG against Coxsackie virus type B5, Adenovirus type
3, 4, and 7, and Poliovac

    Streptococcus pluranimalium was first isolated in 1999. Recently, several case reports have been published that have revealed that S. pluranimalium can infect humans as well. The pathogenicity and pathophysiology of this pathogen is poorly studied and its characteristics are not well known. In this study, S. pluranimalium was first isolated and then identified from infants and children who suffered from upper respiratory infections. 90 samples were collected from nasopharyngeal cavity. Among them, 83 Streptococcus spp. isolates were identified. 3 out of which were biochemically and molecularly identified as S. pluranimalium. 16S rRNA sequencing based identification revealed that all iso

Background:
Patients treated for pediatric malignancy are at high risk of parenterally transmitted viral hepatitis.
Objectives:
To detect the seroprevalence of hepatitis B and C viral infections in children with Acute Lymphoblastic Leukemia & identify some variables that could affect its
prevalence in these patients.
Patients and Methods:
One hundred fifty pediatric acute lymphoblastic leukemia patients, presented to Children Welfare Teaching Hospital, Baghdad, during the period from March 11th
2007 to July 31st 2007 were enrolled in this study; they were 103 males, 47 females, aged (2.25 months- 16 years). Sera of these patients were investigated for hepatitis
markers including HBsAg and A

Leukemia or cancer of the blood is the most common childhood cancer, Acute lymphoblastic leukemia (ALL), is the most common form of leukemia that occurs in children. It is characterized by the presence of too many immature white blood cells in the child’s blood and bone marrow, Acute lymphoblastic leukemia can occur in adults too, treatment is different for children. Children with ALL develop symptoms related to infiltration of blasts in the bone marrow, lymphoid system, and extramedullary sites, such as the central nervous system (CNS). Common constitutional indications consist of fatigue (50%), pallor (25%), fever (60%), and weight loss (26%). Infiltration of blast cells in the marrow cavity and periosteum often lead to bone

The purpose of this subject is to identify what is being studied in the article, which is the involvement of human Metapneumovirus in children with respiratory illnesses. During the period November 2020 to February 2021, 100 patients with respiratory tract infections were admitted to Al Zahra Teaching Hospital and AL-Forat AL-Awsat Teaching Hospital in Najaf Governorate. Nasopharyngeal swabs were collected from patients for molecular diagnosis of human metapneumovirus using Real-Time-PCR. The patients were distributed based on age into five groups as follows (Less than one, 1-2, 2-3, 3-4, and 4-5 years), and twenty samples of healthy individuals were approved as a control group without any clinical signs of infection. the children of age gr

Background: Maxillary sinusitis is one of the most common infections of humans. Sinusitis can be defined as an inflammation of the membrane lining of any sinus, especially one of the
paranasal sinuses.
Objective: To determine the causative microorganisms of acute maxillary sinusitis.
Patients: Forty five acute sinusitis patients were involved in the present study.
Methods: Sampling methods were per-oral nasopharyngeal swabs.
Results: Haemophilus species, Streptococcus pneumoniae (S.pneumoniae) and Moraxella catarrhalis (M.catarrhalis) were the most frequent isolates.
Conclusion: The most causative agents of acute maxillary sinusitis were bacterial isolates, which were Haemophilus species followed by S.pne

Background: Human parvovirus B19 (B19V) is the only human pathogenic parvovirus, It is highly erythrotropic and preferentially replicates in erythroid progenitor cells (EPCs). Recently the effects of B19 infection have been well studied in children with acute lymphoblastic leukemia (ALL).

Objective: To detect parvovirus B19 among children with ALL.

Methods: A cross sectional study involved forty five patients with ALL (21 patients were newly diagnosed ALL and 24 children who underwent chemotherapy) who were attending department of oncology in Children's Welfare Teaching Hospital in Baghdad Medical City between December 2012 and April 2013, compared to forty five of appare