Airborne Transmission: Indirect Contact Through the Air and How to Prevent It

Indirect contact through the air

some pathogens are passed through droplets in the air when an infected person coughs or sneezes (strep throat)

Indirect contact through the air refers to the spread of diseases or infections through the air indirectly, meaning that the infected person is not in direct contact with the person who gets infected. This mode of transmission is also known as airborne transmission. Airborne transmission can occur through the following ways:

1. Droplet nuclei: When an infected person coughs or sneezes, they release droplets into the air that can contain infectious pathogens. These droplets can remain suspended in the air for extended periods and be inhaled by others. This kind of transmission is common in diseases like tuberculosis, measles, and chickenpox.

2. Aerosols: Aerosols are tiny droplets that can be generated during medical procedures like ventilation or intubation. These droplets can contain infectious pathogens, and when inhaled by others, they can cause diseases like COVID-19.

3. Fomites: Infected droplets can land on surfaces like tables, doorknobs, or handles. When someone touches these surfaces and then touches their face or mouth, they can get infected.

Preventing indirect contact through the air requires proper hygiene practices like wearing masks, avoiding crowds, and maintaining social distancing. Additionally, proper ventilation in public spaces and personal protective equipment (PPE) use in healthcare settings can also help reduce the spread of airborne infections.

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