Update: Can a Measles Vaccine (or MMR) Booster Reduce the Risk of COVID-19?

Jun 25, 2023


Welcome to the page discussing the potential link between measles vaccines or MMR boosters and the risk of COVID-19. As concerns regarding the COVID-19 pandemic continue to rise, researchers and healthcare professionals have been exploring various strategies to minimize the risk of infection. In this article, we will explore the connection between measles vaccinations, MMR boosters, and COVID-19, shedding light on whether these preventive measures can help mitigate the risk.

The Measles Vaccine and MMR Booster

The measles vaccine and MMR (measles, mumps, and rubella) booster are widely recognized as effective preventive measures against the respective diseases. Measles, for example, is a highly contagious viral infection that can lead to severe complications, especially in children. The MMR vaccine, which contains weakened or inactivated forms of the viruses, stimulates the immune system to produce a protective response.

COVID-19 and Immune System

COVID-19, caused by the SARS-CoV-2 virus, primarily affects the respiratory system, leading to symptoms ranging from mild to severe illness. The immune system plays a crucial role in defending the body against the virus. While the measles vaccine and MMR booster are not specifically designed to combat COVID-19, some research suggests that they may offer certain protective benefits beyond their intended purpose.

Research Findings

Several studies have been conducted to investigate the potential relationship between measles vaccines, MMR boosters, and COVID-19. While the research is still ongoing and evolving, preliminary findings indicate some interesting trends.

The Innate Immune Response

A study published in The Journal of Pediatrics explored the potential effects of MMR vaccination on the innate immune response, which is the body's initial defense mechanism against pathogens. The study found that individuals who had received the MMR vaccine exhibited a stronger innate immune response when exposed to the SARS-CoV-2 virus. This stronger response could potentially inhibit the initial infection and slow down the progression of COVID-19.

Cross-reactivity with Other Coronaviruses

Another area of interest is the potential cross-reactivity between the measles vaccine/ MMR booster and other coronaviruses. Coronaviruses belong to a larger family of viruses, and some research suggests that the immune response triggered by vaccination against measles or MMR might confer a degree of protection, albeit partial, against COVID-19.

Expert Opinions

A growing number of experts have weighed in on the topic, presenting various perspectives based on the available evidence. While there is no definitive consensus, some experts believe that measles vaccines or MMR boosters may indeed provide some degree of protection against COVID-19, especially in terms of enhancing the overall immune response to the virus.


In conclusion, the relationship between measles vaccines, MMR boosters, and COVID-19 remains an area of ongoing research. Although the current findings suggest some potential benefits, it is important to note that the primary purpose of the measles vaccine and MMR booster is still preventing measles, mumps, and rubella infections. Therefore, consulting with healthcare professionals, following recommended guidelines, and staying updated on the latest scientific advancements are crucial for protecting oneself and others from COVID-19.


MUIR DIABLO OCCUPATIONAL MEDICINE is a leading provider of occupational health services, committed to promoting the well-being of individuals in various industries. Our team of skilled healthcare professionals is dedicated to delivering comprehensive medical solutions, including vaccinations and preventive care, to safeguard against potential health risks. For more information about our services or to schedule an appointment, please visit our website or contact us directly. Your health and safety are our top priorities!

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Informative read! 😷👍
Nov 8, 2023
Dennis Sheeter
Interesting article! 🤔 I never thought there could be a connection between measles vaccines and COVID-19.
Oct 16, 2023