Multiple Choice
In a typical one-step viral growth curve, approximately how many viruses are present at time step 5, assuming the latent period has just ended and the burst size is 100 virions per infected cell with 10 infected cells?
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1. Introduction to Microbiology
Introduction to Microbiology
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Which of the following is NOT considered a reservoir for pathogens?
A
Sterilized surgical instruments
B
Animals
C
Soil
D
Humans
Verified step by step guidance1
Step 1: Understand the definition of a reservoir in microbiology. A reservoir is any person, animal, plant, soil, or substance in which an infectious agent normally lives and multiplies, serving as a source from which other individuals can be infected.
Step 2: Identify the options given: Sterilized surgical instruments, Animals, Soil, and Humans.
Step 3: Analyze each option to determine if it can harbor pathogens. Animals, soil, and humans are known natural reservoirs because they can carry and support the growth of pathogens.
Step 4: Consider sterilized surgical instruments. Since sterilization removes all microorganisms, these instruments do not harbor pathogens and therefore cannot serve as reservoirs.
Step 5: Conclude that sterilized surgical instruments are NOT considered a reservoir for pathogens because they are free of infectious agents after sterilization.
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