Occupational Safety and Health Administration (OSHA) SLC Practice Exam

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What occurs during airborne transmission?

Infectious particles remain airborne for extended periods
Infectious particles are transmitted via direct contact
Infectious particles are ingested through contaminated food
Infectious particles are carried by insects

The correct answer is: Infectious particles remain airborne for extended periods

Airborne transmission refers to the spread of infectious particles that remain suspended in the air for extended periods, allowing them to be inhaled by individuals over a significant distance. This form of transmission is particularly concerning in enclosed environments where the air can circulate and carry pathogens, such as viruses and bacteria, which can lead to widespread outbreaks of disease. For example, diseases like tuberculosis and measles can be transmitted through airborne particles, as they can linger in the air long after the infected person has left the area. Ensuring proper ventilation and using protective measures, like masks, is essential in mitigating the risks associated with airborne transmission. The other forms of transmission mentioned involve direct contact, ingestion of contaminated food, or transmission via insects, which do not relate to airborne mechanisms. Each of these modes of transmission operates through different pathways and mechanisms, highlighting the unique characteristics of airborne transmission as the correct focus here.