Question: List five different ways by which viruses can enter the human body?
Viruses are microscopic agents that can cause various diseases in humans. They can enter the human body through different routes, such as:
- Inhalation: Some viruses can be transmitted through the air when an infected person coughs, sneezes, or breathes. Examples of such viruses are influenza, coronavirus, and measles.
- Ingestion: Some viruses can be ingested through contaminated food or water. Examples of such viruses are norovirus, hepatitis A, and rotavirus.
- Injection: Some viruses can be injected through needles, syringes, or blood transfusions. Examples of such viruses are HIV, hepatitis B and C, and rabies.
- Contact: Some viruses can be transferred through direct or indirect contact with an infected person or object. Examples of such viruses are herpes simplex, chickenpox, and warts.
- Vector-borne: Some viruses can be carried by insects or animals that bite or sting humans. Examples of such viruses are dengue, yellow fever, and Zika.
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