Peerwise Virology

peerwise-virology

Exit

Question 1 of 1

Time Left

461388

120

block

Foetal hydrops is a complication of which of the following viruses?

Select the correct answer(s).

(0/0)

Explanation

Foetal hydrops is a complication of parvovirus B19 as it infects nucleated cells which are progenitor red blood cells in adults but in the foetus, all red blood cells are nucleated. It leads to profound anaemia in the foetus in which its heart tries to work harder resutling in left ventricular failure and accumulation of fluid (in at least two foetal compartments)

461389

120

none

What allows the prediction of the size and spread of outbreaks of viral diseases?

Select the correct answer(s).

(0/0)

Explanation

Generation time is the time period between viral exposure and the individual becoming infectious to others (may be before symptoms occur), Reproduction number is the number of subsequent infections in a suceptible population caused by a viral illness in one individual during its infective period

461390

120

none

Which of the following is a localised infection?

Select the correct answer(s).

(0/0)

Explanation

Influenza is a localised infection of respiratory epithelia, the other viruses are generalised infections

461391

120

none

Which of the following is not a characteristic of pathogenicity factors of viruses?

Select the correct answer(s).

(0/0)

Explanation

Entry and further replication also

461392

120

none

What is the most common route of transmission of viruses?

Select the correct answer(s).

(0/0)

461393

120

none

Retroviruses have an enzyme called viral reverse transcriptase, what action does this enzyme have?

Select the correct answer(s).

(0/0)

Explanation

Retroviruses are positive sense, single stranded RNA viruses. Viral reverse transcriptase converts this positive sense single stranded DNA into double strnaded DNA, which is then inserted into human genome

461394

120

none

What type of genome does a retrovirus such as HIV have?

Select the correct answer(s).

(0/0)

Explanation

Classified differently as have different replication pathway

461395

120

none

Which of the following viruses is not a negative sense single stranded RNA virus?

Select the correct answer(s).

(0/0)

Explanation

Rhinovirus is a positive sense (mRNA) single stranded RNA virus

461396

120

none

Which of the following is not a way in which viruses are classified?

Select the correct answer(s).

(0/0)

Explanation

Primarily classified using baltimore then familities, then serotypes and then genotypes. Viruses cannot be classified based on the disease they cause due; to different viruses casuing same disease, same virus causing different diseases and some viruses causing no disease

461397

120

none

Which stage of the viral life cycle involves the utilisation of surface spikes?

Select the correct answer(s).

(0/0)

Explanation

Surface spikes are used to attach to the host cell to allow the virus to be endocytosed into the host cell as an endosome

461398

120

none

Orchitis is a complication of which of the following viral infections?

Select the correct answer(s).

(0/0)

Explanation

Complications of mumps include: meningitis, orchitis, oophoritis, pancreatitis

461399

120

none

Which antigen is used in hepatitis vaccines?

Select the correct answer(s).

(0/0)

461400

120

none

How many serotypes of rhinovirus are there?

Select the correct answer(s).

(0/0)

461401

120

none

An older version of vaccine for which virus is associated with intussusception?

Select the correct answer(s).

(0/0)

Explanation

Intussusception is part of bowel folding into the next part

461402

120

none

Which virus would you detect the presence of using the monospot antibody test?

Select the correct answer(s).

(0/0)

Results

Correct

0 Incorrect

0 Skipped

0 Overall Percentage

0%

Saving quiz

Save Score

Rate Quiz

Save Rating

Exit