Related Experiment Video
Updated: Sep 8, 2025

Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic
Published on: November 7, 2020
Case Report: A Severe Paediatric Presentation of COVID-19 in APDS2 Immunodeficiency
Nuria Sanchez Clemente1,2, Justin Penner1, Judith Breuer3
1Immunology and Infectious Diseases Department, Great Ormond Street Hospital for Children, London, United Kingdom.
Insights
This case study details a severe COVID-19 infection in an immunocompromised child with activated PI3K delta syndrome type 2 (APDS2). Combination therapy with remdesivir and nitazoxanide may improve viral clearance for SARS-CoV-2.
Area of Science:
- Immunology
- Virology
- Pediatrics
Background:
- Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infections are uncommon in children, with limited data on immunocompromised pediatric populations.
- Activated PI3K delta syndrome type 2 (APDS2) is a primary immunodeficiency affecting immune cell function.
Observation:
- A 4-year-old boy with APDS2 presented with a severe and prolonged course of COVID-19, exhibiting significant inflammatory and acute respiratory symptoms.
- The patient received a multi-drug regimen including remdesivir, nitazoxanide, high-dose corticosteroids, and tocilizumab.
Findings:
- The child experienced a full recovery following the comprehensive treatment regimen.
- The combination of remdesivir and nitazoxanide is proposed as a potential strategy to enhance viral clearance and mitigate resistance in SARS-CoV-2 infections.
Implications:
- This case highlights the potential severity of SARS-CoV-2 in immunocompromised children with specific genetic disorders.
- The findings suggest a possible therapeutic approach for severe COVID-19 in similar pediatric cases, warranting further investigation.
Abstract:
Critical respiratory manifestations of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) are rare in children, and little is known about how immunocompromised children respond to the infection. We report a case of a 4-year-old boy with activated PI3K delta syndrome type 2 (APDS2) with a protracted and severe COVID-19 course with both inflammatory and acute respiratory features. He was treated with remdesivir, nitazoxanide, high-dose corticosteroids, and tocilizumab and made a full recovery. We propose that remdesivir may be used in combination with nitazoxanide to improve viral clearance and reduce the chance of resistance in treating acute SARS-CoV-2 infection.
More Related Videos
07:50A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
Published on: September 20, 2018
07:36Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
Related Concept Videos
Immunodeficiency Diseases
There are three main causes of immunodeficiency...
Acute Pharyngitis
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Acute Respiratory Failure-II
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
Pneumonia II: Pathophysiology
Acute Respiratory Failure-V
Ensure that patients are monitored continuously for their response to therapy, including changes in...
Acute Respiratory Failure-I
Definition: It is defined by specific criteria based on blood gas measurements. Hypoxemia happens when the partial pressure of oxygen (PaO2) falls below 60 mmHg. At the same time,...