Related Experiment Video
Updated: Oct 16, 2025

Author Spotlight: Advancing Immune Monitoring in Critical Care Patients Using Whole Blood Assays
Published on: September 20, 2024
Hyperinflammatory Immune Response and COVID-19: A Double Edged Sword.
Li Yin Tan1,2, Thamil Vaani Komarasamy1, Vinod Rmt Balasubramaniam1
1Infection and Immunity Research Strength, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes COVID-19 by manipulating the host immune system, leading to severe disease and potential long-term neurological effects. This review explains the mechanisms behind severe COVID-19 and its impact on the brain.
Area of Science:
- Immunology
- Virology
- Neurology
Background:
- COVID-19, caused by SARS-CoV-2, has global health and economic impacts.
- The disease presents a wide spectrum, from asymptomatic to fatal multi-organ failure.
- SARS-CoV-2 pathogenesis involves complex virus-host immune interactions, including hyperinflammation and cytokine storms.
Purpose of the Study:
- To provide a framework explaining how SARS-CoV-2 evades host immunity to cause severe disease.
- To explore the differences between mild and severe COVID-19.
- To examine the short- and long-term effects of COVID-19, with a focus on neurological consequences.
Main Methods:
- This is a review article, synthesizing existing research.
- Conceptual framework development based on current scientific literature.
- Comparative analysis of mild versus severe COVID-19 presentations.
Main Results:
- SARS-CoV-2 infection triggers inflammatory pathways, leading to cytokine storms and tissue damage.
- The virus possesses neuroinvasive potential, posing risks to brain health.
- Evidence suggests significant short- and long-term health effects, particularly neurological.
Conclusions:
- Understanding the immune evasion strategies of SARS-CoV-2 is crucial for combating severe COVID-19.
- The neuroinvasive capabilities of SARS-CoV-2 warrant further investigation due to potential severe brain consequences.
- Distinguishing between mild and severe COVID-19 is essential for managing patient outcomes and long-term health.
Related Concept Videos
Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Inflammatory Response
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammatory Response I: Vascular and Cellular
Inflammation
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
Cross-reactivity

