17/02/2025
*What Is Viral Fever?*
Viral fever is not a disease but a symptom of viral infections. It occurs when the body! detects the presence of a virus and triggers an immune response by raising the body temperature. This elevated temperature creates an unfavourable environment for the virus, helping the immune system fight off the infection.
Viral fever can manifest differently depending on the type of virus and the systems it affects. For instance:
Respiratory viruses may cause symptoms such as sore throat, cough, and congestion.
Mosquito-borne viruses like dengue or Zika often present with fever, rash, and joint pain.
Gastrointestinal viruses like rotavirus may lead to fever accompanied by diarrhoea and vomiting.
While most viral fevers resolve within a few days, some may last longer or lead to complications, underscoring the importance of understanding and managing this condition.
*Causes of Viral Fever*
Viral fever is caused by various types of viruses that invade the body and trigger an immune response. Here’s a detailed breakdown of the common causes:
*Respiratory Viruses:*
Influenza Virus: Causes seasonal flu with fever, cough, and body aches.
Rhinovirus: Common cause of the common cold, often accompanied by mild fever.
*Coronavirus*
: Includes strains like SARS-CoV-2 (COVID-19), which may lead to severe symptoms.
Mosquito-Borne Viruses:
Dengue Virus: Transmitted by Aedes mosquitoes, causing high fever, rash, and joint pain.
*Zika Virus*
: Known for fever and its association with birth defects in pregnant women.
*Chikungunya Virus:* Characterized by fever and severe joint pain.
*Gastrointestinal Viruses:*
Rotavirus: Common in children, causing diarrhea and fever.
Norovirus: Highly contagious, leading to stomach pain, vomiting, and fever.
*Exanthematic Viruses* (causing skin rashes):
Measles Virus: High fever with characteristic red rashes.
*Rubella Virus:*
Milder fever with a pink rash.
*Bloodborne Viruses:*
Hepatitis Viruses:
Herpatitis A, B, and C can cause fever along with liver inflammation.
*HIV*
: Fever is often one of the early manifestations of HIV infection.
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