Multidisciplinary expert group: communication measures to increase vaccine compliance in adults.

The WHO categorized vaccine hesitancy as one of the greatest threats to global health worldwide. Vaccination of elderly persons is of increasing relevance, given that they represent a growing segment in the population and considering the burden diseases pose to them. Many factors leading to vaccine hesitancy are related to inadequate communication.

Debunking vaccination myths: strong risk negations can increase perceived vaccination risks.

Objective: Information about risks is often contradictory, especially in the health domain. A vast amount of bizarre information on vaccine-adverse events (VAE) can be found on the Internet; most are posted by antivaccination activists. Several actors in the health sector struggle against these statements by negating claimed risks with scientific explanations.

Opportunities and challenges of Web 2.0 for vaccination decisions.

A growing number of people use the Internet to obtain health information, including information about vaccines. Websites that allow and promote interaction among users are an increasingly popular source of health information. Users of such so-called Web 2.