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Twitter, tweets and influencers

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Article published on the ASSET website

How many ways are there to tell a story and who will do it?

In these months we tried to answer those questions by running an analysis of the most relevant tweets and accounts about some key words, chosen by the editorial board, focused on Zika virus and vaccines.

We then developed an application to identify the most influential Twitter users on specific topics, according to a list of hashtag we have provided. Being based on mentions and retweets, such an approach is also effective in discovering influential users on the short period.

Every day, the app extrapolates the most popular accounts according to our key words. A daily analysis of the firsts 20 accounts allowed us to identify some main categories:

•             Institutions

•             Media

•             Firms

•             Researchers

•             University, organizations, and charities. 

We analysed over 500 accounts: 13 belong to public institutions (i.e. United Nations or House Foreign Affairs Committee), 94 to public health institutions (i.e. CDC and WHO) and 66 to employees of public institutions (i.e. Gregory Härtl – Head of Public Relations/Social Media for the World Health Organization – or Tom Frieden – CDC Director). Six accounts belong to politicians (mostly in US).

This study underlined a strong prevalence of media related accounts. Among 100 accounts, we found that 16 belong to medical or scientific journals (as The Lancet or PLoS), 80 belong to newspapers (as Forbes) and 120 to journalists.

18 of the most popular accounts belong to researchers; universities, charities and organizations were included in a single group of 40 accounts. 

#Zika and #vaccine have been the most used hashtags. In particular, #Zika has been used by 455 accounts, while #vaccine was often used in association with other terms or some related concepts, like #vaccineworks, #immunisation and #autism.

Finally, we found that 63 accounts were “unknown people” that, in most cases, only produced a few tweets. Our app recognised them as influencers because of their interactions with some relevant accounts (most of the times CDC, which often replies when cited).

The absence of European accounts may be due on the one hand to the strong presence of #zika (whose spread is mainly focused in South America), and on the other hand to a smaller social presence of European institutions and media.  


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prossimo articolo

Italy and Cuba: the right to health is a common founding principle

From Article 32 of the Italian Constitution to Article 72 of the Cuban Constitution, the universal right to health provides the common ground on which Italy and Cuba have built - despite profoundly different political and economic contexts - healthcare systems based on primary care, prevention, and community-based services. These models, while currently facing delays and significant challenges, invite reflection on how the protection of health remains one of the most important indicators of a country's level of civilization, social justice, and the quality of its democracy.

Cover image created with ChatGPT.

Article 32, paragraph 1 of the Constitution of the Italian Republic states that: health is a fundamental and collective right; the Republic guarantees access to care; the right to health cannot be transferred or ceded: it is inalienable and inalienable; it is a universal right, belonging to all, without discrimination; it is a subjective right of the individual; it is irreducible and essential.