NORCET 1 - 2020
Applied Microbiology & Infection control
Easy

Regarding COVID-19, which one is not correct?

Appeared in: NORCET 1 - 2020

Explanation

  • COVID-19 is caused by the SARS-CoV-2 virus, which belongs to the Coronaviridae family.
  • This is a completely different viral family from HIV, which is a retrovirus (family Retroviridae), and the various hepatitis viruses (e.g., Hepadnaviridae, Flaviviridae).
  • Therefore, the statement that COVID-19 belongs to the HIV/Hep category is factually incorrect.

Why Other Options Were Wrong

  • Option A: This statement is correct. Severe COVID-19 infection is a well-known cause of Acute Respiratory Distress Syndrome (ARDS), a life-threatening form of respiratory failure.
  • Option C: This statement is correct. SARS-CoV-2 is transmitted through respiratory droplets, which can form aerosols, and also through contact with contaminated surfaces (fomites).
  • Option D: This statement is correct. Fever and cough are two of the most common and hallmark symptoms of a COVID-19 infection.

Related Visual

Visual explanation — Related Visual
  • Visual 1: Infographic - A chart comparing the viral families, structures, and replication methods of SARS-CoV-2, HIV, and Hepatitis B virus to highlight their differences.
  • Visual 2: Diagram - An illustration showing the modes of transmission for COVID-19, including droplet, aerosol, and fomite routes.
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Virology, transmission, and clinical features of COVID-19 as background academic context rather than a clinical decision trigger.
  • Understanding the correct viral classification is crucial for developing targeted antiviral therapies, diagnostic tests (like PCR vs. antibody tests), and effective vaccines.
  • Nurses play a key role in patient education to dispel misinformation, such as incorrect associations between different viruses, which can cause undue panic or complacency.
  • What if? If COVID-19 were a retrovirus like HIV, treatment would focus on antiretroviral therapy (ART) to inhibit reverse transcriptase, and long-term management would address the risk of the virus integrating into the host genome and causing a chronic infection.
How to Approach the Question
  • First, identify the negative framing of the question: it asks for the statement that is 'not correct'.
  • This means three of the options are true statements about COVID-19, and one is false.
  • Systematically evaluate each option based on your knowledge of COVID-19's pathology, transmission, and clinical presentation.
  • Option A (ARDS) is a known complication. Option C (transmission) describes known routes. Option D (symptoms) lists the most common signs.
  • Option B makes a claim about viral classification. Recall that COVID-19 is a coronavirus. HIV and Hepatitis are different types of viruses. This makes Option B the incorrect statement and thus the correct answer.
Concept Tested & Keywords
  • Concept Tested: Virology, transmission, and clinical features of COVID-19
  • Stem keywords: COVID-19, not correct
  • Lead-in keywords: not correct
  • Negative lead-in flag: The question asks for the INCORRECT statement (a negative lead-in).

Question ID

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