Viral Infections - What You Need to Know!
What are Viral Infections?
Viral infections are caused by viruses, tiny infectious agents that replicate only inside the living cells of a host. Unlike bacteria, viruses cannot live outside the body for long, and they rely on a host’s cellular machinery to reproduce. They can infect humans, animals, plants, and even bacteria.
Common Types of Viral Infections:
Influenza (Flu): A highly contagious respiratory virus causing fever, cough, sore throat, and fatigue.
Common Cold: Usually caused by rhinoviruses, this leads to runny nose, cough, and congestion.
COVID-19 (SARS-CoV-2): The novel coronavirus that caused a global pandemic, with symptoms ranging from mild cold-like signs to severe respiratory failure.
HIV/AIDS: Human Immunodeficiency Virus attacks the immune system and leads to AIDS if untreated.
Herpes Simplex Virus (HSV): Causes oral and genital herpes, characterized by painful blisters.
Hepatitis B and C: Viruses that primarily affect the liver, leading to chronic liver disease.
Dengue Fever: A mosquito-borne virus causing high fever, joint pain, and rashes.
Zika Virus: Spread by mosquito bites, Zika can lead to birth defects if contracted during pregnancy.
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