Question

A child admitted with fever, rash begins behind ears, conjunctivitis, coryza, cough and koplik spot. Based on the clinical manifestations, choose the correct description of the pathogen?

• A. SS enveloped RNA virus
• B. DS enveloped RNA virus
• C. SS naked RNA virus
• D. DS naked RNA virus

Answer 1

The Correct Option is A

The clinical manifestations described in the question are characteristic of measles, a contagious disease caused by the measles virus. Let's break down the key symptoms mentioned:

• Fever and rash: Measles is typically associated with a high fever and a characteristic rash that starts behind the ears and spreads to the rest of the body.
• Conjunctivitis: This is a common symptom of measles, characterized by inflammation and redness of the eyes.
• Coryza: Refers to cold-like symptoms, such as runny nose and nasal congestion, prevalent in measles.
• Cough: A persistent cough is also often present in measles cases.
• Koplik spots: These are small, white lesions inside the mouth that are pathognomonic for measles.

Based on these clinical features, we can determine the nature of the pathogen responsible for measles:

• Measles is caused by a single-stranded (ss), enveloped RNA virus belonging to the Paramyxoviridae family and the Morbillivirus genus.

Virus Characteristics	Description
Genome	Single-stranded RNA (ssRNA)
Envelope	Enveloped

Given the options:

• SS enveloped RNA virus
• DS enveloped RNA virus
• SS naked RNA virus
• DS naked RNA virus

The correct choice is: SS enveloped RNA virus.