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Published on: November 10, 2023
Potential for Further Mismanagement of Fever During COVID-19 Pandemic: Possible Causes and Impacts
Samer Singh1, Dhiraj Kishore2, Rakesh K Singh3
1Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India.
Insights
Fever management guidelines are confusing, potentially denying benefits of fever. This review clarifies fever
Area of Science:
- Infectious Diseases
- Immunology
- Public Health
Background:
- Fever is a critical component of managing acute infectious diseases, particularly when therapeutics are limited.
- Misconceptions and conflicting guidelines, exacerbated by the COVID-19 pandemic, hinder appropriate fever management.
- Current guidelines may not fully leverage fever's beneficial immune-boosting and pathogen-inhibiting properties.
Purpose of the Study:
- To restate the benefits of fever in resolving infectious diseases.
- To address and dispel common myths surrounding fever management.
- To advocate for the alignment of national treatment guidelines with WHO recommendations.
Main Methods:
- Literature review and synthesis of existing research on fever's physiological roles.
- Analysis of current national and international fever management guidelines.
- Critical evaluation of the scientific basis for fever thresholds in treatment recommendations.
Main Results:
- Temperatures around 39°C enhance crucial immune responses (heat-shock, humoral, cell-mediated, nutritional).
- Fever at or above 40°C activates antiviral defenses and inhibits pathogens like SARS-CoV-2, influenza, and measles.
- Conflicting guidelines risk public health by preventing optimal utilization of fever's natural protective mechanisms.
Conclusions:
- Fever possesses significant beneficial roles in combating infectious diseases.
- Dispelling myths and clarifying guidelines are essential for public health.
- Aligning national guidelines with WHO recommendations will promote appropriate practices and reduce infectious disease morbidity and mortality.
Abstract:
Fever remains an integral part of acute infectious diseases management, especially for those without effective therapeutics, but the widespread myths about "fevers" and the presence of confusing guidelines from different agencies, which have heightened during the coronavirus disease 2019 (COVID-19) pandemic and are open to alternate interpretation, could deny whole populations the benefits of fever. Guidelines suggesting antipyresis for 37.8-39°C fever are concerning as 39°C boosts the protective heat-shock and immune response (humoral, cell-mediated, and nutritional) whereas ≥40°C initiates/enhances the antiviral responses and restricts high-temperature adapted pathogens, e.g., severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), strains of influenza, and measles. Urgent attention is accordingly needed to address the situation because of the potential public health consequences of the existence of conflicting guidelines in the public domain. We have in this article attempted to restate the benefits of fever in disease resolution, dispel myths, and underline the need for alignment of national treatment guidelines with that of the WHO, to promote appropriate practices and reduce the morbidity and mortality from infectious diseases, such as COVID-19.
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Homeostatic Imbalances in Body Temperature

