1-Why do some viruses seem to go away and then return later, like a cold sore?a-host has been infected with a different strainb-the immune system forgot the virusc-the virus had entered the lysogenic cycled-the virus mutated2-The most common healthcare associated infection is/area. surgical site infectionsb. urinary tract infectionsC. septicemiad. respiratory system infections3-Which of the following is NOT a characteristic which makes one more susceptible tohealthcare associated infections?a. Severe burnsb. Elderlyc. Maled. Diabetic4-When a microbe periodically changes its surface markers to avoid the immune system it iscalleda. camouflageb. antigenic variationc. antibody destructiond. molecular mimicry5- Which of the following is NOT a non-specific defense found in the GI tract?a. Acidity in the stomachb. Constant movement of materials through the systemc. Alkalinity of the small intestined. All of the above are non-specific defenses of the GI tract6-The dry and slightly acidic environment of the skin functions as a non-specific defense.a. Trueb. False7-a. Cytokinesb. Interferonsare antiviral proteins produced by vinus infected cells.c. Transferrinsd. Complement

Since there are multiple questions in this particular question I will answer the first one for you.…

1-Why do some viruses seem to go away and then return later, like a cold sore? a-host has been infected with a different strain b-the immune system forgot the virus c-the virus had entered the lysogenic cycle d-the virus mutated

1-Why do some viruses seem to go away and then return later, like a cold sore? a-host has been infected with a different strain b-the immune system forgot the virus c-the virus had entered the lysogenic cycle d-the virus mutated

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter20: Viruses, Bacteria, And Archaea

Section: Chapter Questions

Problem 1CT: If a cut or scrape becomes infected, Staphylococcus aureus is probably the culprit (right). These...

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Concept explainers

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.

Question

100%

1-Why do some viruses seem to go away and then return later, like a cold sore?
a-host has been infected with a different strain
b-the immune system forgot the virus
c-the virus had entered the lysogenic cycle
d-the virus mutated
2-The most common healthcare associated infection is/are
a. surgical site infections
b. urinary tract infections
C. septicemia
d. respiratory system infections
3-Which of the following is NOT a characteristic which makes one more susceptible to
healthcare associated infections?
a. Severe burns
b. Elderly
c. Male
d. Diabetic
4-When a microbe periodically changes its surface markers to avoid the immune system it is
called
a. camouflage
b. antigenic variation
c. antibody destruction
d. molecular mimicry
5- Which of the following is NOT a non-specific defense found in the GI tract?
a. Acidity in the stomach
b. Constant movement of materials through the system
c. Alkalinity of the small intestine
d. All of the above are non-specific defenses of the GI tract
6-The dry and slightly acidic environment of the skin functions as a non-specific defense.
a. True
b. False
7-
a. Cytokines
b. Interferons
are antiviral proteins produced by vinus infected cells.
c. Transferrins
d. Complement

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