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MMR Vaccine: Dosage, Side Effects, and Its Role in Preventing Rubella in Southeast Asian Adults

As a parent, safeguarding your child’s health through vaccination is always a priority. But did you know that protecting yourself as an adult is just as important? The MMR vaccine prevents three serious viral diseases—measles, mumps, and rubella. With recent measles outbreaks in Southeast Asia and the risks of rubella to pregnant women, staying up to date with vaccinations is more critical than ever. Additionally, understanding Measles Prevention and the importance of the MMR booster, potential vaccine side effects, and how to prevent measles outbreaks can help you make informed health decisions. 

Let’s explore what the MMR vaccine does, who needs it, and why it matters.

Understanding the MMR Vaccine

What is the MMR Vaccine?

The MMR vaccine is a combined immunisation that protects against three contagious diseases: measles, mumps, and rubella. It has been widely used for decades, and is a safe and effective way to build immunity against these infections.

How Does the MMR Vaccine Work?

Some believe that natural infection provides better immunity than vaccination. However, natural measles infection can lead to severe complications like pneumonia, brain swelling (encephalitis), and even death. Vaccination offers safe, long-term immunity without these risks.

The MMR vaccine contains weakened forms of the viruses, which stimulate the immune system to produce antibodies without causing illness. This response prepares your body to fight off these diseases if exposed.

Recommended Dosage and Administration

Children typically receive two doses—one at 12-15 months and another at 4-6 years. However, adults who are unsure of their immunity should check with their doctor about getting vaccinated. In Singapore, the MMR vaccine is available at various healthcare facilities, with prices around SGD 70 per dose. Understanding the vaccine dose and its administration can help ensure complete protection.

Importance of the MMR Vaccine in Preventing Measles

Recent Measles Outbreaks and Their Causes

Recent measles outbreaks in unvaccinated communities highlight the dangers of skipping vaccination. Measles cases have risen in Southeast Asia, particularly in Vietnam and Thailand. This resurgence is primarily due to declining vaccination rates and misinformation about vaccines. Learning how to prevent measles outbreaks through vaccination is essential.

How does the MMR Vaccine Prevent Measles

A 2024 WHO published statement found that 90% of unvaccinated individuals exposed to measles contracted the disease, compared to only 3% of vaccinated individuals. The vaccine is nearly 100% effective at preventing severe illness.

Two doses of the MMR vaccine provide approximately 97% protection against measles, significantly reducing the risk of infection and transmission.

Community Immunity and Its Significance

When most people in a community are vaccinated, it helps protect those who cannot receive vaccines due to medical conditions. This concept, herd immunity, is vital in keeping vulnerable groups safe.

Mumps: The Often Overlooked Threat

Mumps is another serious disease prevented by the MMR vaccine. It causes swelling of the salivary glands, leading to pain, fever, and fatigue. In some cases, mumps can result in complications such as meningitis, hearing loss, or inflammation of the testicles in males, which can lead to infertility. Unlike a mild viral infection, mumps can have lifelong consequences, making vaccination the safest option. It significantly reduces its spread and prevents severe complications.

Rubella and the MMR Vaccine‘s Role in Adults

Rubella Symptoms in Adults

Rubella (German measles) can cause fever, rash, and swollen lymph nodes. Joint pain and arthritis-like symptoms are also common in adults. Awareness of rubella symptoms in adults is crucial for early detection and prevention.

Risks of Congenital Rubella Syndrome (CRS)

For pregnant women, rubella can be especially dangerous. If a woman contracts rubella during early pregnancy, her baby is at risk of developing congenital rubella syndrome (CRS), which can cause severe congenital disabilities. Vaccination is the best prevention.

Importance of MMR Booster for Adults

The 2019 rubella outbreak in the Philippines led to nearly 400 cases of congenital rubella syndrome, resulting in severe congenital disabilities. These cases were entirely preventable with widespread vaccination.

If you’re planning a pregnancy or working around young children, getting an MMR booster can protect you and those around you from rubella.

Addressing Concerns: Side Effects and Accessibility of the MMR Vaccine

Common Side Effects

One common myth is that the MMR vaccine causes autism—a claim thoroughly debunked by scientific research. Large-scale studies, including a 2019 Danish study of over 650,000 children, confirmed no link between the MMR vaccine and autism.

Most people experience no side effects. However, mild reactions like a sore arm, low-grade fever, or rash can occur, and usually go away quickly. Understanding vaccine side effects can help manage concerns about immunisation.

Vaccine Cost and Availability

The MMR vaccine is widely available in Singapore and costs around SGD 70 per dose at healthcare clinics and hospitals. If you’re wondering about the vaccine price, this is the approximate cost at most facilities.

Ministry of Health Recommendations

The MOH recommended vaccine guidelines strongly advocate routine MMR vaccination for children and adults as part of the national immunisation schedule to prevent outbreaks and protect public health.

Take Action to Protect Your Family

Protect yourself and your community by ensuring you and your loved ones are up-to-date with the MMR vaccine. Vaccinating against measles, mumps, and rubella is a simple yet powerful step toward a healthier community. A single shot can provide lasting protection for you and those around you. Stay informed, stay protected!

If you’ve delayed vaccination due to myths or concerns, now is the time to act. Speak with your doctor, review real-world data, and ensure your family stays protected against these serious diseases. Don’t wait for an outbreak to take action—vaccination is your safest choice.

Frequently Asked Questions about the MMR Vaccine

  1. Who should get the MMR vaccine?
The MMR vaccine is recommended for all children, with two doses at 12-15 months and 4-6 years. Adults who have not been vaccinated or are unsure of their immunity should also get the vaccine, especially those travelling to areas with outbreaks or women planning pregnancy.
  1. What are the common side effects of the MMR vaccine?
Most people experience no side effects. However, mild reactions like a sore arm, fever, or rash may occur. These effects are temporary and usually resolve independently within a few days. Serious side effects are infrequent.
  1. How effective is the MMR vaccine in preventing measles, mumps, and rubella?
Two doses of the MMR vaccine provide approximately 97% protection against measles, 88% against mumps, and almost 100% against rubella. It is one of the most effective vaccines available.
  1. Why is the MMR booster necessary for adults?
Immunity can wane, and some adults may not have received both doses in childhood. A booster shot ensures continued protection, particularly for those in healthcare, childcare, or planning a pregnancy.
  1. Is the MMR vaccine safe during pregnancy?
The MMR vaccine is not advised during pregnancy. Women should get vaccinated at least one month before conception to ensure immunity against rubella, which can cause severe congenital disabilities. If pregnant, consult your doctor for guidance.

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Disclaimer

Hello Health Group does not provide medical advice, diagnosis or treatment.

  1. World Health Organization (WHO) – Measles, Mumps and Rubella
    https://www.who.int/news-room/fact-sheets/detail/measles
    https://www.who.int/news-room/fact-sheets/detail/rubella https://www.who.int/teams/health-product-policy-and-standards/standards-and-specifications/norms-and-standards/vaccine-standardization/mumps Accessed March 11, 2025
  2. Centers for Disease Control and Prevention (CDC) – MMR Vaccine VIS
    https://www.cdc.gov/vaccines/hcp/current-vis/mmr.html?CDC_AAref_Val=https://www.cdc.gov/vaccines/hcp/vis/vis-statements/mmr.html Accessed March 11, 2025
  3. Ministry of Health, Singapore – Immunisation Guidelines. Nationally recommended Vaccines.
    https://www.moh.gov.sg/seeking-healthcare/overview-of-diseases/communicable-diseases/nationally-recommended-vaccines  Accessed March 11, 2025
  4. National Centre for Infectious Diseases (NCID) – The Communicable Diseases Control Handbook _2020.
    https://www.ncid.sg/Health-Professionals/Diseases-and-Conditions/Documents/The%20Communicable%20Diseases%20Control%20Handbook_2020%20Version.pdf Accessed March 11, 2025
  5. HealthHub Singapore – Measles, Mumps, Rubella Vaccine Information Leaflet.
    https://www.healthhub.sg/a-z/medications/measles-mumps-rubella-mmr-vaccine  Accessed March 11, 2025
  6. Centres for Disease Control and Prevention. Pregnancy and Vaccinations. CDC – Vaccination Guidelines During Pregnancy Accessed March 11, 2025
  7. PCM.NCBI.NIM.NIH – A Review of the Resurgence of Measles, a Vaccine-Preventable Disease, as Current Concerns Contrast with Past Hopes for Measles Elimination https://pmc.ncbi.nlm.nih.gov/articles/PMC10946219/ Accessed March 11, 2025
  8. Immunize.org – MMR Vaccine does not cause Autism, Examine the Evidence. https://www.immunize.org/wp-content/uploads/catg.d/p4026.pdf#:~:text=association%20between%20MMR%20vaccination%20and,whose%20older%20siblings%20had%20autism.&text=Thimerosal%2Dcontaining%20Vaccines%20and%20Risk%20of%20Autism%20Spectrum%20Disorder. Accessed March 11, 2025

Current Version

04/25/2025

Written by Jan Alwyn Batara

Fact-checked by Jan Alwyn Batara

Updated by: Jan Alwyn Batara


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