The numbers have been dizzying. Four hundred thirty-three. Six hundred twenty-seven. Seven hundred ninety-three.
For weeks now, the daily briefings by Italy’s civil protection agency have been providing grim updates on the number of people killed by the new coronavirus, deepening a sense of gloom in a country that has become the deadliest centre of the pandemic.
Despite a series of near-draconian measures gradually rolled out to halt the spread of the virus, including a nationwide quarantine and the shutdown all non-essential businesses, Italy has been unable to “flatten the curve” – slowing the spread of the contagion in a bid to prevent an already overburdened healthcare system from being overrun.
The country’s latest tally reported a total of 5,476 deaths from 59,138 infections, with a world-leading fatality rate of 8.6 percent.
In contrast, in China, where the outbreak originated, the mortality rate stands at 3.8 percent. In Germany, which has reported more than 24,000 cases, just 94 deaths, it is at 0.3 percent.
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But there may be several reasons for Italy’s alarming mortality rate.
“The numbers we have are not representative of the entire infected population,” said Massimo Galli, head of the infectious disease unit at Sacco Hospital in Milan, the main city in the worst-hit region of Lombardy where 68 percent of the total national fatalities have been reported.
Galli explained that as the emergency situation rapidly deteriorated over the past month, Italy focused its testing only on people showing severe symptoms in areas with high epidemic intensity – the result, experts say, is that the currently available numbers produce a statistical artefact, a distortion.
“This causes an increase in the fatality rate because it is based on the most severe cases and not on the totality of those infected,” Galli said.
The coronavirus may take up to 14 days before an infection flares into symptoms such as fever and dry cough, and during that incubation period asymptomatic patients may potentially transmit it. Experts believe it is this so-called “stealth transmission” that has driven the rapid spread of the outbreak, infecting communities that remain unaware until they develop symptoms and are tested.
As of March 15, Italy had carried out about 125,000 tests. In contrast, South Korea – which has implemented a strategy of widespread testing – has conducted some 340,000 people being tested, including for those showing mild or no symptoms at all. It has recorded almost 9,000 infections to date, with a mortality rateof 0.6 percent.
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Italy’s ‘social contact matrix’
While the new coronavirus can infect people of all ages, older adults, whose immune systems have declined with age, appear to be more vulnerable to becoming severely ill after contracting the virus, which causes a highly infectious respiratory disease officially known as COVID-19.
In Italy, 85.6 percent of those who have died were over 70, according to the National Institute of Health’s (ISS) latest report.
Considering that 23 percent of Italians are over 65 years old, Italy has the second-oldest population in the world after Japan, age distribution could also have played a role in raising the fatality rate, according to observers.
Another possible factor is Italy’s healthcare system itself, which provides universal coverage and is largely free of charge.
“We have many elderly people with numerous illnesses who were able to live longer thanks to extensive care, but these people were more fragile than others,” Galli said, adding that numerous patients at Sacco Hospital – one of Italy’s largest medical centres – who died due to coronavirus were already suffering from other serious diseases.
According to the ISS’s latest report tracing the profile of COVID-19 victims, 48 percent of the deceased had an average of three pre-existing illnesses.
While indirectly, experts also pointed to Italy’s “social contact matrix” as another possible reason behind the wider spread of the coronavirus among older people.
“Elderly Italian people, while most of them live by themselves, are not isolated and their life is characterised by a much more intense interaction with their children and younger population compared to other countries,” said Linda Laura Sabbadini, central director of the Italian National Institute of Statistics.
“When such an external shock [such as the coronavirus outbreak] takes place, it’s important that these interactions decrease, hence isolating elderly people should have immediately been a priority.”
However, such explanations arising from the peculiarities of the Italian experience – ranging from strong familial ties in a geriatric society to issues surrounding testing practices – should not make other nations complacent, experts warned.
“Other countries should watch closely,” said Pierluigi Lopalco, epidemiologist and professor of hygiene at the University of Pisa.
“What we are watching in Italy is the same movie we have already seen in China, where Italy is Hubei and Lombardy is Wuhan,” he said, referring respectively to the Chinese province that was sealed off by the authorities, and its capital where the new coronavirus was first detected late last year.
“I am afraid we will be re-watching the same film again in other countries in the coming weeks,” warned Lopalco, who is part of a taskforce leading the epidemiological response in Puglia, in southern Italy.
Citing the epidemic curve of other countries, Lopalco suggested that their difference with Italy is simply timing: they are just at an earlier stage.
“After China, Italy is the first country where the epidemic erupted; hence, we are dealing with the effects of an advanced-stage epidemic.”
While many countries are gradually adopting stricter measures to implement social distancing, they have so far resisted taking the same drastic steps as Italy due to significant worries about the economic effects of such moves.
Italian doctors at the centre of the country’s battle with the pandemic have warned that the reluctance to act quickly and decisively could have important consequences.
“If I were the head of any country’s health ministry I would be terrified, and I would move extremely fast to adopt strict measures to contain it,” Galli said, even as he conceded that “in these situations, we all are forever unprepared: it is impossible to be fully ready to handle such events”.
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‘Hoping a new wave doesn’t come’
As Italy has been holding its breath to see the epidemic flattening its curve, the strained healthcare system has been quickly approaching total saturation.
In Lombardy, some doctors on the coronavirus front lines are working without adequate protective equipment, according to reports, exposing themselves to great risk. Already, 14 of them have lost their lives and a total of 3,700 nurses and doctors have become infected while on duty, according to ISS.
Meanwhile, authorities in the Italy’s hardest-hit region are running against time to isolate people and find beds for patients. In central Milan, the four-star Michelangelo hotel is being transformed into a quarantine facility for some 300 people, while an exhibition pavilion is being turned into an intensity care ward for another 300 people. Both are scheduled to be in operation by the end of this week.
According to Galli, it will be weeks before a consistent slowdown is recorded in northern Italy because the region is still coping with the infections contracted before the implementation of the sweeping isolation measures.
“We are like a man submerged into the sea with the tip of his nose still being able to reach the surface. He is still breathing, but also hoping that a new wave doesn’t come.”
However, the latest update by the country’s civil protection agency was grounds for some cautious optimism.
The number of new infections on Sunday stood at 3,957, compared with 4,821 the day before, while deaths fell to 651 from a record 793 on Saturday – a rare moment of respite, albeit fleeting.