Parque Taruma cemetery in Manaus, Brazil BRUNO KELLY/Reuters/PA Images
鈥淚 think when you鈥檙e sitting in Europe, you feel like you just had the epidemic and everyone鈥檚 coming out of it. It feels like it鈥檚 over with. But it鈥檚 actually just at the start in every country in some ways,鈥 says Azra Ghani at Imperial College London of covid-19鈥檚 spread.
Her view is backed up by World Health Organization statistics, which show that the world experienced its highest daily jump in new confirmed coronavirus cases on 7 June, a record that has since been broken three more times. 鈥淎lthough the situation in Europe is improving, globally it is worsening,鈥 WHO general secretary Tedros Adhanom Ghebreyesus at a press conference on 8 June.
The virus’s spread continues as the world rapidly approaches the grim threshold of half a million confirmed deaths, . The world passed the milestone of 8 million confirmed cases today.
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The geographical burden of covid-19 is shifting. While the US is still worst affected, with more than 2 million cases and more than 100,000 deaths, it is now followed by Brazil, Russia and India, followed mostly by European countries. Peru has the eighth most cases, and the WHO has called South America the new epicentre of the epidemic. The Middle East鈥檚 share of global new cases has climbed too in the past fortnight. Cases in Africa are still relatively low, but are speeding up: reaching 100,000 took 98 days, but 200,000 just 18 days.
Worldwide, the average number of daily new confirmed cases in June has settled at a higher level than in May. However, David Heymann at the London School of Hygiene and Tropical Medicine says deaths, rather than cases, are the gold standard for measuring transmission, despite reflecting events around two to four weeks ago. Unlike cases, global daily deaths are relatively static, averaging 4295 in June so far, versus 4619 in May.
Upward trend
Heymann, who led the WHO鈥檚 response to聽SARS in 2003, says the upward trend in cases could be a result of more testing and a reflection of countries鈥 different strategies. 鈥淚t鈥檚 really apples and oranges in the same basket because some countries are doing additional testing for contact tracing and throwing positives into the basket, and other countries aren鈥檛 doing that,鈥 he says.
The large number of new confirmed cases may be partly due to greater testing capacity and tracing efforts, says Ghani. But she suspects another reason they are ticking up is that many countries are beginning to emerge from lockdown. In some countries, such as Germany, there has been a slow increase in detected infections, while in others, including Iran, the increase has been faster, . Some lockdown restrictions are now being reintroduced in Beijing, China, where .
A WHO spokesperson says: “The biggest threat we now face is complacency. All countries have unique epidemiological curves. Some that brought large outbreaks under control have seen flare-ups. Whether a flare-up becomes a second large outbreak is down to whether or not strong public health interventions are established.”
Ghani is particularly worried about low and middle-income countries that cannot sustain lockdowns and have weaker healthcare systems. 聽projects deaths will accelerate across the next 28 days in Brazil, India, Pakistan, Russia and South Africa, along with many other countries.
Covid-19 now appears to be with us all for good, she says. 鈥淭here鈥檚 been fantastic successes in New Zealand and Australia, and South-East Asia. But given the global spread, I think we have to consider it endemic now.鈥
Only the beginning
Yet even though the coronavirus is widespread, the pandemic is at an early stage. The actions taken to control and limit the spread of the virus can still have a big effect on how many people will ultimately catch it.
An initial analysis by Ghani offers some hope that people are adapting in ways that mean second peaks of the virus aren’t inevitable.
Before lockdowns, movement patterns tracked using data from Google and elsewhere were a good predictor of new cases. But as some richer countries emerge from restrictions, the correlation between cases and movement has weakened, she has found, in as-yet unpublished work.
鈥淔ace mask wearing has become more widespread. When we start to move around, we鈥檙e probably staying a bit further apart from people, we鈥檙e not having the close contact, the handshaking. And maybe we鈥檙e avoiding contexts where transmission might occur,鈥 says Ghani. 鈥淭hat鈥檚 a positive sign. If that鈥檚 sustained in coming weeks, it suggests we are learning a way to live with the virus.鈥
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