Multiple Choice
What is the most likely effect of adding a sodium ionophore to a culture of Vibrio cholerae?
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1. Introduction to Microbiology
Introduction to Microbiology
Multiple Choice
Indirect transmission of a disease occurs when:
A
the pathogen is transferred from one host to another via a contaminated object or vector
B
the pathogen is transmitted directly from person to person through physical contact
C
the pathogen is produced within the host's own cells
D
the disease is inherited genetically from parent to offspring
Verified step by step guidance1
Understand the concept of disease transmission modes: direct and indirect transmission.
Direct transmission involves the immediate transfer of pathogens from an infected host to a susceptible host, often through physical contact or droplets.
Indirect transmission occurs when the pathogen is transferred via an intermediate object (fomite) or a living vector, such as contaminated surfaces, instruments, or insects.
Analyze each option to identify which describes indirect transmission: look for mention of contaminated objects or vectors rather than direct contact.
Conclude that the correct description of indirect transmission is when the pathogen is transferred from one host to another via a contaminated object or vector.
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