{"id":50044,"date":"2021-04-09T18:46:47","date_gmt":"2021-04-09T17:46:47","guid":{"rendered":"https:\/\/blogs.bmj.com\/bmj\/?p=50044"},"modified":"2021-04-16T15:39:08","modified_gmt":"2021-04-16T14:39:08","slug":"covid-19-in-italy-maintaining-trust-in-vaccines-and-balancing-risks","status":"publish","type":"post","link":"https:\/\/blogs.bmj.com\/bmj\/2021\/04\/09\/covid-19-in-italy-maintaining-trust-in-vaccines-and-balancing-risks\/","title":{"rendered":"Covid-19 in Italy: maintaining trust in vaccines and balancing risks"},"content":{"rendered":"

Italy is now facing a third covid-19 pandemic surge, exactly one year after the first one. But while hospital wards, emergency departments, and intensive care units are quickly filling up again with covid-19 patients, many things have changed. Italy\u2019s population is experiencing exhaustion and depression, along with severe hardship. <\/span>The past 12 months have been dreadful in so many ways.
\n<\/span>
\n<\/span>The vaccination campaign started at the beginning of 2021, but is proceeding more slowly than expected. The criteria for vaccine allocation are being criticised, as healthy school teachers and hospital administrative staff are vaccinated before the elderly and vulnerable people. Arbitrary decisions in some regions of Italy have meant that lawyers and judges were vaccinated before people older than 80.<\/span><\/p>\n

Although the European Medicines Agency has pronounced the Oxford-AstraZeneca vaccine safe, its temporary suspension in many countries, and recent safety concerns about very rare blood clots could seriously set back the European vaccination campaigns, if public confidence is undermined.\u00a0<\/span><\/p>\n

The Italian Medicines Agency (AIFA) defended the Oxford vaccine\u2019s safety one day and suspended it the next. This seems to be a largely political choice, intended to calm the emotional storm, but has not helped with public confidence.\u00a0<\/span><\/p>\n

This third wave and the \u201cmass hysteria\u201d about vaccines create a persistent feeling of an endless loop, fuelled by a few major cognitive biases. Among many other political social and structural factors, three key elements are worth mentioning:<\/span><\/p>\n

A failure to understand what exponential growth means
\n<\/em>
\nAccording to legend, the Brahmin Sissa ibn Dahir invented chess for an Indian king. In gratitude, the king asked Sissa how he wanted to be rewarded. Sissa wished to receive an amount of grain that was the sum of one grain on the first square of the chess board, and then doubled on every following square. This request is now known as the \u201cw<\/span>heat and chessboard problem<\/span><\/a>\u201d. <\/span>The king laughed it off as a meagre prize for a brilliant invention, only to realise that the unexpectedly huge number of wheat grains would outstrip his kingdom\u2019s resources. Versions differ as to whether the inventor became a high-ranking adviser or was executed.<\/span><\/p>\n

This is the third time that we have been caught almost unprepared by a pandemic surge, and the challenges of this wave, once again, have been tackled reactively rather than proactively. Some countries (such as New Zealand) have been able to defend a \u201cgreen zone\u201d through lockdowns even for a few new cases, but in Italy media reports from hospitals overwhelmed with covid patients are needed before politicians enforce\u2014and citizens to accept\u2014restrictive measures.\u00a0<\/span><\/p>\n

Misleading perceptions of risk<\/span><\/em><\/p>\n

Often our perception of risk doesn\u2019t match reality: we are not good at assessing risk, and when it comes to medicine, because we don\u2019t understand its stochastic (probabilistic) nature, we do not accept at all the hazards inherent in medical practice. We are witnessing a sort of common refusal to accept minimal risks from the vaccine, while the much higher risks from covid are neglected, as we are accepting hundreds of deaths every day as a new normality.<\/span><\/p>\n

Risks and benefits are a matter of probabilities. Today we are well aware that human beings are bad with numbers and probabilities, as was largely shown by cognitive sciences. In communicating risks and benefits, caution should be exercised to avoid any confusion, and expert science communicators should be involved. Unfortunately, doctors and journalists have contributed to the confusion in some cases. Good doctors or journalists are not necessarily good science communicators.\u00a0<\/span><\/p>\n

An irrational approach to scientific issues<\/span><\/em><\/p>\n

According to the third law of Arthur C. Clarke (1917 \u2013 2008), author of <\/span>2001: A Space Odyssey<\/span><\/i>: \u201cAny sufficiently advanced technology is indistinguishable from magic.\u201d Many people today do not trust science and medicine, but simply have a magical approach: failing to understand the underlying processes, they simply expect that a certain action always leads to a certain and predictable result, that correlation is always causation.\u00a0<\/span><\/p>\n

A collective “post hoc, ergo propter hoc” logical fallacy is the reason why many deaths have been attributed to vaccines. It also led to the resurgence of hydroxychloroquine for the treatment of covid-19 in some out-of-hospital protocols in Italy on the basis of purely anecdotal reports.\u00a0<\/span><\/p>\n

Again, a part of the scientific community, as well as a certain type of journalism, have been responsible for approaching medical issues through emotional levers (fear, indignation) that wipe out rationality.\u00a0<\/span><\/p>\n

Magical thinking, conspiracy theories, anti-scientific attitudes are all tools used to build a comfortable reality, whenever we are not able to embrace the complexity and the uncertainty of the real world.\u00a0<\/span><\/p>\n

Roberto Burioni, an Italian virologist, declared a few years ago that \u201cscience is not democratic.\u201d He meant that in science, opinions do not all have the same value and that the correct hypothesis is not the one supported by the majority, but the one supported by evidence. We only partly agree with this statement: evidence alone is not enough to support a scientific \u201ctruth\u201d if the scientific community does not agree. The evidence-to-consensus path is a key process, and it is vulnerable and exposed to biases.\u00a0<\/span><\/p>\n

As a society, though, we often misunderstand what \u201cdemocracy in science\u201d really means: not a scientific truth supported by the opinion of the majority, but transparency and integrity with data management, evidence selection, and consensus building, in order to allow informed and appropriate political choices.\u00a0<\/span><\/p>\n

Lucia Crax\u00ec<\/strong>\u00a0is assistant professor in bioethics, department of biomedicine, neuroscience and advanced diagnostics (BiND), University of Palermo, Italy\u00a0<\/em><\/p>\n

Marco Vergano<\/strong> is chair of the ethics section, Italian Society of Anesthesia Analgesia Resuscitation and Intensive Care (SIAARTI), and consultant, department of anesthesia and intensive care, San Giovanni Bosco Hospital, Turin, Italy.\u00a0<\/em><\/p>\n

Fabrizio Elia<\/strong> is consultant, department of emergency medicine, San Giovanni Bosco Hospital, Turin, Italy.<\/em><\/p>\n

Competing interests<\/strong>: none declared.\u00a0<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Italy is now facing a third covid-19 pandemic surge, exactly one year after the first one. But while hospital wards, emergency departments, and intensive care units are quickly filling up […]<\/p>\n

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