Introduction to Measles | Causes, Risk Factors, Transmission, Stages of Infection, Signs & Symptoms

The video tutorial provides a comprehensive overview of measles, covering its causes, risk factors, transmission, stages of infection, and symptoms. Measles is a highly contagious virus from the Paramyxoviridae family, known for causing a characteristic rash. Risk factors include vitamin A deficiency, malnutrition, and being immunocompromised. Transmission occurs through respiratory droplets and airborne mechanisms. The infection progresses through incubation, prodrome, exanthem, and recovery stages, with symptoms like fever, conjunctivitis, and a maculopapular rash. Vaccination has reduced measles mortality, but it remains a significant health concern.

What family does the measles virus belong to?

• Paramyxoviridae

• Retroviridae

• Flaviviridae

• Coronaviridae

Which of the following is a risk factor for contracting measles?

• Regular exercise

• Vitamin A deficiency

• Excessive sleep

• High protein diet

How is the measles virus primarily transmitted?

• Through contaminated water

• By insect bites

• Through direct skin contact

• Via respiratory droplets

During which stage of measles infection do Koplik spots appear?

• Incubation stage

• Prodrome stage

• Exanthem stage

• Recovery stage

What is a characteristic feature of the measles rash?

• It starts on the legs and spreads upwards

• It affects the palms and soles

• It is always itchy

• It is blanchable initially

What happens to the measles rash as it progresses?

• It darkens to a brown color

• It spreads to the palms

• It disappears completely

• It becomes itchy

What is the incubation period for measles?

• 10-21 days

• 7-14 days

• 4-7 days

• 1-3 days

What is a common post-infectious symptom of measles?

• Persistent cough

• Severe headache

• Joint pain

• Nausea

What is modified measles?

• A more severe form of measles

• A form of measles that affects only children

• A type of measles that is resistant to vaccines

• A milder form of measles in partially immune individuals

What is atypical measles associated with?

• Lack of vaccination

• Recent measles vaccination

• Vaccination between 1963-1967

• Over-vaccination