Vernal keratoconjunctivitis and intestinal parasitic infestations in black children

Ayotunde Ajaiyeoba1

  • 1Department of Ophthalmology, University College Hospital, Ibadan, Nigeria. ayotundeajaiyeoba@yahoo.co.uk

Insights

Vernal keratoconjunctivitis (VKC) in Nigerian children showed a link to intestinal worm infections. While not an independent risk factor, deworming might benefit children with VKC, warranting further research.

Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Pediatrics

Background:

  • Vernal keratoconjunctivitis (VKC) is a common allergic eye condition in children.
  • Intestinal parasitic infections are prevalent in many tropical and subtropical regions.

Purpose of the Study:

  • To investigate the association between vernal keratoconjunctivitis (VKC) and intestinal worm infestations in black children in Nigeria.
  • To determine if parasitic infections are a risk factor for VKC.

Main Methods:

  • A case-control study was conducted with 117 VKC cases and 198 controls in Ibadan, Nigeria.
  • Participants were assessed for parasitic infestations, including roundworm, hookworm, and protozoa.
  • Statistical analysis, including odds ratios, was used to evaluate the association.

Main Results:

  • Children with VKC had a higher prevalence of parasitic infestations (50.5%) compared to controls (36.8%).
  • The odds ratio for VKC in children with worm infestations was 1.68.
  • Roundworm infestation was the most common type, but neither it nor older age were independent risk factors for VKC.

Conclusions:

  • A significant association exists between intestinal worm infestations and VKC in Nigerian children.
  • Deworming interventions may potentially benefit children suffering from VKC.
  • Further research with robust study designs is recommended to confirm these findings and guide treatment strategies.

Related Concept Videos

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...
American Trypanosomiasis01:22

American Trypanosomiasis

Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
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...
Leishmaniasis01:30

Leishmaniasis

Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...