Indirect Transmission occurs through which mechanism?

Indirect Transmission occurs through which mechanism?

• A. Direct Transmission
• B. Indirect Transmission
• C. Vector Transmission
• D. Vehicle Transmission

Answer: (B)

Indirect transmission happens when a pathogen moves from one host to another through an intermediary object or organism. Vectors like mosquitoes or ticks carry the pathogen and transmit it during feeding. Vehicles such as contaminated water, food, or fomites (like doorknobs or towels) transfer the pathogen when a person touches or ingests them. This makes indirect transmission the mechanism being described, since it involves an intermediary rather than direct person-to-person contact. Direct transmission would require immediate contact with the infectious source, not through an intermediary. The listed routes—vector and vehicle—are specific examples of indirect transmission, but naming the general mechanism best fits the question.

Indirect transmission happens when a pathogen moves from one host to another through an intermediary object or organism. Vectors like mosquitoes or ticks carry the pathogen and transmit it during feeding. Vehicles such as contaminated water, food, or fomites (like doorknobs or towels) transfer the pathogen when a person touches or ingests them. This makes indirect transmission the mechanism being described, since it involves an intermediary rather than direct person-to-person contact. Direct transmission would require immediate contact with the infectious source, not through an intermediary. The listed routes—vector and vehicle—are specific examples of indirect transmission, but naming the general mechanism best fits the question.