Multiple Choice
Which statement is true about obligate anaerobes?
72
views
1. Introduction to Microbiology
Introduction to Microbiology
Multiple Choice
Which sequence of events best describes how an infection occurs within healthcare settings?
A
Mode of transmission → Infection → Reservoir → Susceptible host
B
Reservoir → Mode of transmission → Susceptible host → Infection
C
Infection → Reservoir → Susceptible host → Mode of transmission
D
Susceptible host → Reservoir → Infection → Mode of transmission
Verified step by step guidance1
Step 1: Understand the key terms involved in the infection process within healthcare settings: 'Reservoir' is the source where the infectious agent normally lives and multiplies; 'Mode of transmission' is how the infectious agent is transferred from the reservoir to a new host; 'Susceptible host' is an individual who can become infected; and 'Infection' is the establishment and multiplication of the infectious agent in the host.
Step 2: Recognize the logical sequence of events for an infection to occur: first, the infectious agent must be present in a reservoir; then it must be transmitted via a mode of transmission; next, it must reach a susceptible host; and finally, infection occurs when the agent successfully invades and multiplies in the host.
Step 3: Analyze each option by matching it against the logical sequence: Reservoir → Mode of transmission → Susceptible host → Infection.
Step 4: Eliminate options that start with 'Infection' or 'Susceptible host' before the reservoir or mode of transmission, as infection cannot occur without the presence of the infectious agent in a reservoir and its transmission.
Step 5: Conclude that the correct sequence is the one that begins with the reservoir, followed by mode of transmission, then the susceptible host, and finally infection.
Related Videos
Related Practice
