Reuters/Ipsos Data: Measles Vaccinations (05/07/2019)

Three quarters of Americans believe children should be vaccinated for measles regardless of parental objections.

The author(s)

  • Chris Jackson Vice President, US, Public Affairs
  • Annaleise Azevedo Lohr Senior Account Manager, US, Public Affairs
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Washington, D.C. -  A new poll conducted by Ipsos on behalf of Thomson Reuters found that Americans overwhelming believe the measles virus to be dangerous (87%) and the same number also believe that the vaccine for measles is safe (87%). A similar number of Americans (85%) believe that children should be required to get the measles vaccination unless they are prohibited from doing so for medical reasons. Americans also report being in favor of requiring the measles vaccine for children even if their parents personally object to vaccinations (77%). While Americans overwhelming agree on the issue, Democrats are more likely to say children should be vaccinated regardless of parental objections (81%) compared to Republicans (74%). Seventy-one percent of Americans report they have been vaccinated against the measles virus, just seven percent report not being vaccinated, and 15 percent do not know. 

About this Study

These are findings from an Ipsos poll conducted for Thomson Reuters between April 30-May 2, 2019. For the survey, a sample of 2,008 Americans, including 785 Democrats, 666 Republicans, and 378 Independents ages 18+ were interviewed online. The precision of the Reuters/Ipsos online polls is measured using a credibility interval. In this case, the poll has a credibility interval of plus or minus 2.5 percentage points for all adults, 4.0 percentage points for Democrats, 4.3 percentage points for Republicans, and 5.7 percentage points for Independents. For more information about credibility intervals, please see the appendix.

The data were weighted to the U.S. current population data by gender, age, education, and ethnicity. Statistical margins of error are not applicable to online polls. All sample surveys and polls may be subject to other sources of error, including, but not limited to coverage error and measurement error. Figures marked by an asterisk (*) indicate a percentage value of greater than zero but less than one half of one per cent. Where figures do not sum to 100, this is due to the effects of rounding. To see more information on this and other Reuters/Ipsos polls, please visit

For more information on this news release please contact:

Chris Jackson
Vice President, U.S.
Ipsos Public Affairs

Annaleise Lohr
Senior Account Manager, U.S.
Ipsos Public Affairs

About Ipsos Public Affairs

Ipsos Public Affairs is a non-partisan, objective, survey-based research practice made up of seasoned professionals. We conduct strategic research initiatives for a diverse number of American and international organizations, based not only on public opinion research, but elite stakeholder, corporate, and media opinion research.

Ipsos has media partnerships with the most prestigious news organizations around the world. In Canada, the U.S., UK, and internationally, Ipsos Public Affairs is the media polling supplier to Reuters News, the world's leading source of intelligent information for businesses and professionals. Ipsos Public Affairs is a member of the Ipsos Group, a leading global survey-based market research company. We provide boutique-style customer service and work closely with our clients, while also undertaking global research.

About Ipsos

Ipsos is an independent market research company controlled and managed by research professionals. Founded in France in 1975, Ipsos has grown into a worldwide research group with a strong presence in all key markets. Ipsos ranks fourth in the global research industry.

With offices in 89 countries, Ipsos delivers insightful expertise across five research specializations: brand, advertising and media; customer loyalty; marketing; public affairs research; and survey management.

Ipsos researchers assess market potential and interpret market trends. They develop and build brands. They help clients build long-term relationships with their customers. They test advertising and study audience responses to various media and they measure public opinion around the globe.

Ipsos has been listed on the Paris Stock Exchange since 1999 and generated global revenues of €1,749.5 million in 2018.



The author(s)

  • Chris Jackson Vice President, US, Public Affairs
  • Annaleise Azevedo Lohr Senior Account Manager, US, Public Affairs