The study in question is published on the Harvard Kennedy School Misinformation Review by researchers at the Annenberg Public Policy Center of the University of Pennsylvania, and was conducted via survey on a sample of 2500 citizens in the Usa in the spring and then in the fall of 2019, when the United States was recorded the largest measles outbreak of the past 25 years.
The results From the analysis of the answers showed that 18% of the respondents agreed with the statement (incorrectly) that vaccines cause autism, the 15% claimed (wrongly) that they are full of toxins, and 19% thought to agree with the fact not supported by scientific evidence that it is better to develop immunity ammalandosi rather than with the vaccine. "He who has taken information from mainstream media has been less likely to approve claims antiscientifiche," said Dominik Stecula, a member of the program of science Communication for the Public Policy Center of the Annenberg and author of the studioinsieme to Ozan Kuru, and Kathleen Hall Jamieson, because the means of traditional news, he added Stecula "reflect more of the scientific opinions on the benefits and safety of vaccines".
Confidence and strength, research has also demonstrated how the level of trust in physicians affects the likelihood that the beliefs about vaccines to change, in particular a low level of confidence in the expert coincides with the increase of false beliefs. And that bad information about vaccines stands the test of time: the majority of those, who in the spring were, say, ill-informed (81%) were still months after, i.e. in the autumn, in spite of the wide coverage that journalists and the CDC, the Centers for Disease Control and Prevention, Usa, had given the epidemic of measles that had hit in the meantime the nation. Change your mind in the worse Between the two periods of investigation - spring and fall - for the 19% of the sample, the level of bad information about vaccines is changed in a substantial way. And among those who had changed their beliefs, the 64% is the result worse informed in the fall than in the spring. Now, as the same authors stated, the results of the study show only a correlation between media coverage and individual attitudes about vaccines, and not a cause-and-effect, however, what emerged from the survey can reflect and have implications on the effectiveness of the national campaigns of vaccination, on the role of health professionals in dealing with the bad information, and on the impact of social on misinformation”. Finally, on the "utilities to increase the amount of content the 'pro vax' in the media of all kinds", is the reflection of the authors. What about the italians? From the first Eurobarometer on the attitudes of europeans about vaccines, presented by the EU Commission last spring shows that 46% of italians are convinced that the vaccines are the same persons responsible for serious side effects, about a third thought that weaken the immune system (32%), and that may cause the disease by which they protect (34%). But we are not alone: quite the opposite, given that he believes in serious side effects and frequent, with 48% of europeans. The poll in fact confirms at the european level, the dissemination of a series of "incorrect perceptions that must be dealt with”, as he said to April 2019, the vice-president then in office of the european Commission Jyrki Katainen, who added that “ Europe is the region in the world with the lowest level of confidence in the safety and efficacy of vaccines, and this is a risk to public health". On the vaccines, and then here and overseas clearly "decisive action against the misinformation is crucial".
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