Measles

Disease Description (Causes and Symptoms)

• Causes and pathophysiology: Measles (rubeola) is an acute infectious disease caused by the measles virus that begins in the respiratory mucosa. It is transmitted through droplets (respiratory secretions) and is highly contagious. After invading the respiratory epithelium, the virus spreads throughout the body, causing prodromal symptoms and a generalized rash.
• Incubation period: Usually 10–14 days.
• Contagious period: Contagious from 1–2 days before the rash appears until approximately 4 days after the rash appears.
• Main symptoms: High fever (sometimes above 40°C), cough, runny nose, conjunctivitis (eye redness and light sensitivity), generalized weakness that may be accompanied by complications, loss of appetite, lymphatic edema, itchy skin, characteristic Koplik spots in the mouth (small white spots), and an erythematous maculopapular rash (spreading from the face → trunk → limbs). The rash lasts for several days and then disappears through a process of turning brown and peeling.
• Risk of complications: Otitis media, bronchitis, pneumonia (viral/bacterial), diarrhea, and, rarely, encephalitis (severe). The risk of complications is higher in infants and young children, people with malnutrition, and immunocompromised individuals.

Treatment Methods

• Basic principles: Supportive treatment is the main approach (fever reduction, hydration, nutrition, and rest). There is no specific antiviral treatment.
• Medications and treatment
  • Antipyretics: Acetaminophen (or ibuprofen if necessary) may be used to relieve fever and discomfort. Aspirin is contraindicated in children (risk of Reye syndrome).
  • Fluid and electrolyte replacement: For dehydration or reduced food intake.
  • Vitamin A: In accordance with WHO recommendations, vitamin A may be administered to children (particularly in areas with vitamin A deficiency or in severe cases) once or twice, with effects in reducing complications and mortality.
  • Immunoglobulin (IVIG or IMIG): Administration within 5–6 days after exposure may prevent infection or lessen clinical manifestations (particularly considered for high-risk groups such as immunocompromised individuals, infants and young children, and pregnant women).
  • Vaccine (live vaccine, MMR): Vaccination within 72 hours after exposure may provide preventive effects in some cases (post-exposure prophylaxis).
  • Antibiotics: Antibiotics are used as indicated for bacterial complications (such as otitis media and bacterial pneumonia).
• Indications for hospitalization: Difficulty breathing, hypoxia, altered consciousness, severe complications (pneumonia or encephalitis), or high-risk groups (infants and young children, pregnant women, and immunocompromised individuals).
• Prognosis: Most people recover and acquire lifelong immunity. The risk of severe disease and death is increased in infants and young children, people with malnutrition, and immunocompromised individuals.

Checkpoints Before an Outpatient Visit (Including Example Questions)

• Items/documents to prepare
  • Record of the date symptoms recently began (date fever started and date rash started) and symptom progression
  • Contact and exposure history (date of contact with a person suspected or confirmed to have measles)
  • Vaccination records (whether MMR was received and when)
  • List of medications currently being taken (particularly immunosuppressants)
  • Past medical history (immunocompromised status, chronic diseases, pregnancy status, etc.) and recent test results (if available)
  • Information related to the child’s growth and nutritional status
• Key points to confirm during an outpatient visit (example questions)
  • When did the symptoms start? (Date the fever, cough, and rash started)
  • Have you recently had contact with a person with measles or traveled abroad?
  • Have you received the MMR (measles, mumps, and rubella) vaccine? How many doses have you received?
  • Are you pregnant or is there a possibility that you may be pregnant? (For women)
  • Do you have an immunocompromised condition (such as cancer treatment or long-term steroid use)?

Examples of General Questions to Ask the Doctor

• What are the main side effects of this medication (if prescribed)? What precautions should I take when taking it?
• How high is the risk of complications (pneumonia, otitis media, and encephalitis), and what symptoms require an immediate visit to the emergency room?
• How long should I remain protected and isolated at home? How should family members and people living with me be managed?
• Is vaccination needed, and what will the subsequent vaccination schedule be?

Examples of Disease-Specific Questions

• (Pregnant women) If I have been exposed to measles and have no vaccination history or an uncertain vaccination history, what is the potential effect on pregnancy, and is protection (e.g., administration of immunoglobulin) recommended?
• (Parents or guardians of infants and young children) If my child is exposed before receiving the recommended MMR vaccination, which is recommended: immediate vaccination or administration of immunoglobulin? Also, what are the criteria for determining whether hospitalization is necessary?

Summary of Additional Precautions

• Isolation: Because a person remains infectious for at least 4 days after the rash begins, isolation is recommended (follow the guidelines of medical institutions and public health authorities).
• Prevention: Measles can be prevented with vaccination (MMR). Consider advancing the vaccination schedule during a local outbreak.
• High-risk groups (newborns, pregnant women, and immunocompromised individuals) should consult medical staff immediately after exposure (immunoglobulin may be considered).