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Front Med (Lausanne). 2019 Jul 25;6:165. doi: 10.3389/fmed.2019.00165. eCollection 2019.

Boosting the Immune System, From Science to Myth: Analysis the Infosphere With Google.

Author information

1
Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
2
Brighton & Sussex Medical School, Brighton, United Kingdom.

Abstract

Background: The concept that one can "boost" immunity is a popular one. Although the only evidence-based approach to this is vaccination, the lay public is exposed to a wide range of information on how to boost immunity. The aim of this study was to analyze such information available on the Internet. Methods and findings: We visited 185 webpages returned from a Google search on "boost immunity" and classified them by typology (blogs, commercial, government, no-profit, news, professional, scientific journals) and by using standard indicators of health information quality (JAMA score, HONCode). We then analyzed their content in terms of disease and "boosters" mentioned. Commercial and news websites represented one third of the results each. Of the 37 approaches to boost immunity recorded, the top ones were diet (77% of webpages), fruit (69%), vitamins (67%), antioxidants (52%), probiotics (51%), minerals (50%), and vitamin C (49%). Interestingly, vaccines ranked 27th, with only 12% of webpages mentioning them. Conclusions: Commercial websites are an important component of the information available to the public on the topic, and thus contribute providing biased information.

KEYWORDS:

antioxidants; complementary and alternative medicine; google; immunity; internet; vaccines; vitamins

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