Enteric viruses associated with HIV infection in Tanzanian children with chronic diarrhea

J P Cegielski1, A E Msengi, S E Miller

  • 1Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA.

Insights

Small round structured viruses (SRSV) may be linked to chronic diarrhea in HIV-infected Tanzanian children. Further research is needed to confirm this association in pediatric populations.

Area of Science:

  • Pediatric Infectious Diseases
  • Viral Gastroenteritis
  • HIV/AIDS Research

Background:

  • Chronic diarrhea is a significant health issue in children, particularly in resource-limited settings.
  • Human immunodeficiency virus (HIV) infection can exacerbate gastrointestinal problems, including chronic diarrhea.
  • Identifying specific viral etiologies is crucial for effective management and prevention strategies.

Purpose of the Study:

  • To investigate the association between specific enteric viruses and HIV infection in children experiencing chronic diarrhea.
  • To compare viral prevalence in HIV-infected children with chronic diarrhea versus HIV-uninfected children and controls.

Main Methods:

  • A cross-sectional survey was conducted at a major national teaching hospital in Dar es Salaam, Tanzania.
  • Enteric viruses in fecal specimens were identified using electron microscopy (EM).
  • The study included HIV-infected children, HIV-uninfected children with chronic diarrhea, and children without diarrhea, aged 15 months to 5 years.

Main Results:

  • Small round structured viruses (SRSV) were found to be more frequent in HIV-infected children with chronic diarrhea compared to HIV-uninfected children (prevalence ratio = 6.09).
  • Rotavirus and coronavirus-like particles (CVLP) did not show a significant association with HIV infection status in children with chronic diarrhea.
  • The findings suggest a potential link between SRSV and HIV-related chronic diarrhea in this pediatric cohort.

Conclusions:

  • Small round structured viruses (SRSV) may be associated with chronic diarrhea in HIV-infected children in Tanzania.
  • The study highlights the need for larger, confirmatory research to validate these findings.
  • Understanding viral co-infections in HIV-positive children is essential for improving clinical outcomes.
Abstract

Related Concept Videos

Poliomyelitis01:17

Poliomyelitis

Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...
Bacterial Gastroenteritis01:18

Bacterial Gastroenteritis

Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...
Cytomegalovirus Disease01:27

Cytomegalovirus Disease

Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...
Inhibitors of Virion Maturation and Assembly01:19

Inhibitors of Virion Maturation and Assembly

As part of their replication cycle, certain viruses synthesize long precursor proteins called polyproteins within infected host cells. In human immunodeficiency virus (HIV), two major polyproteins are produced: Gag and Gag-Pol. The Gag polyprotein supplies the structural components of the virus, while Gag-Pol includes essential viral enzymes such as reverse transcriptase, integrase, and protease. After synthesis, these polyproteins move to the host cell membrane, where they assemble into an...
Amebiasis01:28

Amebiasis

Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...