Chronic intestinal infection due to subgenus F type 40 adenovirus in a patient with AIDS

D Dionisio1, S Arista, E Vizzi

  • 1Infectious Diseases Unit, Careggi Hospital, Florence, Italy.

Insights

A prolonged intestinal infection caused by adenovirus type 40 occurred in an AIDS patient. This is the first reported case linking adenovirus type 40 to chronic gastrointestinal issues in immunocompromised individuals.

Area of Science:

  • Infectious Diseases
  • Gastroenterology
  • Virology

Background:

  • Adenoviruses are common causes of gastroenteritis.
  • Immunocompromised individuals, such as those with Acquired Immunodeficiency Syndrome (AIDS), are susceptible to persistent and severe infections.
  • Chronic gastrointestinal symptoms in AIDS patients can be challenging to diagnose.

Observation:

  • A case of chronic intestinal infection lasting 13 months in an AIDS patient is presented.
  • Adenovirus type 40 was identified as the sole enteropathogen.
  • Viral particles were detected in duodenal biopsies via electron microscopy.

Findings:

  • Adenovirus type 40 was confirmed in stool samples using ELISA and monoclonal antibodies.
  • The identified virus was linked to the patient's persistent gastrointestinal symptoms.
  • No other enteropathogens were detected, supporting adenovirus 40 as the causative agent.

Implications:

  • This case highlights adenovirus type 40 as a potential cause of chronic diarrhea in AIDS patients.
  • It underscores the importance of considering uncommon pathogens in immunocompromised individuals.
  • Further research may be warranted on adenovirus type 40 pathogenesis in the context of immunodeficiency.

Related Concept Videos

Immunodeficiency Diseases01:25

Immunodeficiency Diseases

Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency disorders...
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...
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...
Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Giardiasis01:12

Giardiasis

Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...
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...