Astrovirus infection in children in lagos, Nigeria

Ci Ayolabi1, D Ojo, I Akpan

  • 1Dept. of Microbiology, University of Lagos, Nigeria.

Insights

Astrovirus is a significant cause of acute gastroenteritis in young children in Lagos. This study found a high prevalence of astrovirus infection in children with diarrhea, particularly those under 12 months old.

Area of Science:

  • Virology
  • Public Health
  • Pediatrics

Background:

  • Astrovirus is a common cause of gastroenteritis in children worldwide.
  • Data on astrovirus prevalence in Lagos, Nigeria, is limited.

Purpose of the Study:

  • To investigate the prevalence of astrovirus in children under 5 years old in Lagos.
  • To identify risk factors associated with astrovirus infection.

Main Methods:

  • A cross-sectional study was conducted involving 215 children.
  • Faecal samples were analyzed for astrovirus antigen using ELISA (Astrovirus RIDASCREEN®).

Main Results:

  • Astrovirus was detected in 40.4% of children with diarrhea versus 11.1% in controls.
  • Infection was more prevalent in children under 12 months (75%) and decreased with age (P=0.0470).
  • Prevalence was slightly higher in males but not statistically significant.

Conclusions:

  • Astrovirus is an important etiological agent of acute gastroenteritis in children in Lagos.
  • Younger children, especially infants, are most vulnerable to astrovirus infection.

Related Concept Videos

Arboviral Encephalitis01:25

Arboviral Encephalitis

Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
Viral Meningitis01:18

Viral Meningitis

Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
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...
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...
Infectious Diseases and Their Occurrence01:28

Infectious Diseases and Their Occurrence

Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...