Question

In: Biology

1. A new virus of lobster has been found, and you have been told that they...

1. A new virus of lobster has been found, and you have been told that they suspect it is a herpesviruses. Which of these would NOT be expected if it really is a herpesviruses?

A. It is a naked virus

B. It has a double stranded DNA genome

C. It has icosahedral capsids

D. It has a large DNA genome

2. A woman comes in for a prenatal check up and casually mentions she brought her three year old with her because he has a fever with bright red cheeks, but his pediatrician says it is B19 and no big deal. What should you do?

A. Test all exposed for antibodies and counsel about risk

B. Agree that it is nothing to worry about

C. Put her on interferon therapy

D. Put her on erythromycin

3. A 36 year old prison guard comes in because he is has started feeling tired all the time and the whites of his eyes are turning yellow. He tells you about a month ago he had blood splashed in his eye while breaking up a fight. He has received all recommended vaccinations. What is likely diagnosis?

A. Acute hepatitis C

B. Acute hepatitis A

C. Pinkeye from Haemophilus influenza

D. Infectious mononucleosis

4. Which of the following is NOT primarily caused by a bacterial exotoxin?

A. Tuberculosis

B. Tetanus

C. Scalded skin syndrome

D. Toxic shock syndrome

5. Which of the following is an example of indirect transmission of a communicable disease?

A. Getting mono after sharing chap stick

B. Getting ringworm from petting a stray dog

C. Getting dengue after a mosquito bite

D. Getting tetanus after stepping on a rusty nail

Solutions

Expert Solution

Answer 1) It is naked virus

Herpesviruses have a unique four-layered structure: a core containing the large, double-stranded DNA genome is enclosed by an icosapentahedral capsid which is composed of capsomers. The capsid is surrounded by an amorphous protein coat called the tegument. It is encased in a glycoprotein-bearing lipid bilayer envelope.

Answer 2) Test all exposed for antibodies and counsel about risk

parvovirus B19 have a harmful effects on the pregnant woman and fetus. It can then cause fetal anemia, non-immune fetal hydrops and fetal death. Among cases with fetal demise, B19 is found to be in significant numbers, especially in the second andthird trimesters of pregnancy. The first thing to do for management of Parvovirus B19 is the study of parvovirus B19-specific IgG and IgM. A pregnant woman who is exposed to or develops signs or symptoms of parvovirus B19 infection should perform both parvovirus B19-specific IgG and IgM.

Answer 3) Acute hepatitis C

Hepatitis C is a contagious disease caused by Hepatitis C Virus, (HCV) which is spread through contact with blood and bodily fluids that contain HCV. This disease damages your liver. There are two types of hepatitis C infection: acute and chronic. Acute hepatitis C is a short-term viral infection. People with acute hepatitis C carry the infection for a small window of time, often just several months. One of the symptoms in acute include: jaundice, or yellowing of the skin and eyes.

Answer 4) Tuberculosis

Tuberculosis (TB), a disease caused by Mycobacterium tuberculosis (Mtb) infection. It do not produce exotoxin

Answer 5) Getting dengue after a mosquito bite

Indirect transmission refers to the transfer of an infectious agent from a reservoir to a host by suspended air particles, inanimate objects (vehicles), or animate intermediaries (vectors).

gladiator answered 1 year ago

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