Infections can be transmitted through various routes:
1. Contact Transmission: This is the most common route and can be direct or indirect. Direct contact transmission occurs when there is physical contact between an infected person and a susceptible person. Indirect contact transmission involves an intermediate object or surface.
2. Droplet Transmission: Infectious agents are spread through droplets expelled during coughing, sneezing, or talking. These droplets can travel short distances and land on mucous membranes of another person.
3. Airborne Transmission: Some infectious agents can be carried on small particles that remain suspended in the air and can be inhaled by others, leading to infection.
4. Vehicle Transmission: This involves contaminated items such as food, water, medications, or medical devices.
5. Vector-borne Transmission: This occurs when insects such as mosquitoes or ticks transmit infectious agents to humans.
