An outbreak of echovirus 11 in a children's home

E Somekh1, T Shohat, R Handsher

  • 1The Pediatric Infectious Diseases Unit, The Edith Wolfson Medical Center, Holon, Israel.

Insights

Echovirus 11 efficiently spread in a children's home, causing aseptic meningitis in 30% of infected infants. Asymptomatic infections were common in infants and staff, highlighting transmission risks in communal settings.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Virology

Background:

  • Echovirus 11 outbreaks can occur in institutional settings.
  • Children's homes present unique challenges for infection control.

Purpose of the Study:

  • To investigate the transmission dynamics and clinical presentation of echovirus 11 in a children's home setting.
  • To assess the attack rate and risk factors associated with echovirus 11 infection.

Main Methods:

  • Case identification and clinical assessment of affected children and staff.
  • Laboratory analysis of cerebrospinal fluid (CSF) and stool samples for echovirus 11.
  • Serological testing to detect recent echovirus 11 infection in staff.

Main Results:

  • Echovirus 11 infection was confirmed in 9 infants younger than 1 year, with 3 developing aseptic meningitis.
  • Asymptomatic shedding of echovirus 11 occurred in 6 infants and 1 older child.
  • Seven asymptomatic staff members showed serological evidence of recent echovirus 11 infection, suggesting efficient transmission.

Conclusions:

  • Echovirus 11 spreads efficiently in children's homes, posing a significant risk to vulnerable infants.
  • Aseptic meningitis occurred in 30% of infected infants, while adult infections were largely asymptomatic.
  • Enhanced hygiene and infection control measures are crucial in institutional settings to prevent echovirus outbreaks.

Related Concept Videos

Investigation of Disease Outbreaks01:23

Investigation of Disease Outbreaks

Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...
Diphtheria01:28

Diphtheria

Diphtheria is an acute, toxin-mediated infectious disease that primarily affects the upper respiratory tract. It is caused by Corynebacterium diphtheriae, a Gram-positive, pleomorphic rod that lacks spore-forming capability and exhibits a characteristic club-shaped morphology under microscopic examination. While C. diphtheriae can asymptomatically colonize mucosal surfaces, clinical disease manifests only when the bacterial strain is lysogenized by a specific β-corynephage. This phage...
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...
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...
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...
Respiratory Syncytial Virus Disease01:29

Respiratory Syncytial Virus Disease

Human respiratory syncytial virus (RSV) is a widespread pathogen that primarily targets infants and young children but also poses a serious health risk to elderly and immunocompromised individuals. Belonging to the Pneumoviridae family, RSV is a negative-sense, single-stranded RNA virus within the Pneumovirus genus. Its global health burden is significant, with millions of cases annually resulting in hospitalizations and mortality, particularly in resource-limited settings. Although most...