Global COVID Containment: Confirmed Cases, Updated Daily
Sometimes, it helps to gain a fresh perspective.
Since the pandemic began, there have been innumerable tracking resources made available online, but rarely do they paint a complete picture of a country’s containment progress.
How Much Progress Is Really Being Made
Featured above, this continuously updated chart from Our World in Data provides a more complete look at the efficacy of COVID-19 containment strategies, sorted by country.
It is a variation of the Epidemic Curve (or “epi curve”), showing confirmed COVID-19 cases per country in relation to their testing rates—what’s revealed is the strength of each country’s containment strategy.
Only a fraction of total cases–those confirmed by a test–is known. This is why we spent recent months building the database and the visualization tool to make this variation of the epidemic curve possible.
— Our World in Data
Why Look at it This Way? Adequate Benchmarking
Countries vary widely in how they monitor and report on COVID-19. Cases in this particular chart were confirmed via laboratory testing, and the data covers 66% of the globe’s population.
Depending on a country’s containment efforts, confirmed cases can differ dramatically from total cases. To get a better idea of that difference, Our World in Data looked closer at the extent of testing. As they report, the World Health Organization considers an adequate benchmark to be 10-30 tests per confirmed case. And for those countries that experience larger outbreaks, there must be more tests conducted per confirmed case.
What the COVID Test-to-Case Ratio Tells Us
- Line Trajectory: In this chart, rising lines show that the average number of laboratory-confirmed cases has increased over time, and vice versa for falling lines. Beyond flattening the curve, the end game is to have all of those lines reach zero.
- Blue Lines: The darker the blue line, the more likely that the line is an accurate indicator, as thousands of tests have been administered per confirmed case. The more blue lines this chart shows over time, the better for us all.
- Red Lines: By contrast, the warmer the color of the line, the fewer tests are being administered per confirmed case, and it is less likely to be an accurate measure of COVID-19 cases. Red lines, for example, indicate that only five tests are conducted for every confirmed case, suggesting that the count is not accurate and that many cases are going unreported.
Consider these three scenarios in the diagram above, and hover over countries in the main visualization to compare:
- Country A: Winning the fight against COVID-19.
These countries, like New Zealand, have steadily increased the number of tests per confirmed case. Country A administers hundreds or thousands of tests per confirmed case. The likelihood of missed cases is far lower, most cases are accounted for, and they can confidently state they are winning the fight against COVID-19.
- Country B: A severe, prolonged outbreak.
In comparison, countries like the U.S. have experienced a steady rise in confirmed cases. They also have lower rates of testing—only five tests per confirmed case. Country B cases are likely to be higher than the number reported, a fact that is especially concerning given that the U.S. has already surpassed the rest of the world’s countries in confirmed cases.
- Country C: A volatile scenario.
While confirmed cases decrease, there is much room for doubt. In Country C (South Africa for instance), confirmed cases are decreasing, but very few tests are administered. Unfortunately, this indicates there are many unrepresented cases. Country C probably has a larger problem than its downward trajectory would indicate.
Cases Per Million People
From a different angle, we can see daily new COVID-19 cases per capita. This gives us a better sense of how countries compare in terms of confirmed cases.
Countries like Thailand, New Zealand, and South Korea all show relatively low rates of COVID-19 per capita, as well as high levels of testing. Conversely, countries like Spain and Kuwait reveal high levels of confirmed cases per capita and extremely low testing rates.
Another Perspective for Good Measure
For a holistic view of testing, the map below shows us the daily number of tests for each newly confirmed COVID-19 case, based on a rolling 7-day average.
Countries like Norway, Australia, and Canada reveal strong testing-to-confirmed-case ratios. In contrast, countries like Bolivia and the Philippines reveal the probability of out-of-control outbreaks.
Due to lower levels of testing in relation to confirmed cases, countries in red are more likely to leave cases unreported.
Making Sense of the Unknown
Although charts like these allow us to look at relationships between critical variables, there are no guarantees of what will come of this outbreak or any second waves.
The only certainty right now, is uncertainty. But with visualizations like this one—updated daily—we can at least stay up-to-speed with the knowledge curve.
Visualizing the Range of EVs on Major Highway Routes
We visualize how far popular EV models will take you on real-world routes between major cities, and which are the most cost effective.
The Range of EVs on Major Highway Routes
Between growing concerns around climate change, new commuting behaviors due to COVID-19, and imminent policy changes, the global transition to electric vehicles (EVs) is well under way.
By the year 2040, sales of electric vehicles are projected to account for 58% of new car sales, up from just 2.7% currently.
But switching from a gasoline car to an electric one is not seamless. With charging and range capacities to consider, and the supporting infrastructure still being slowly rolled out in many parts of the world, understanding the realities of EV transportation is vital.
Above, we highlight 2020 all-electric vehicle range on well-recognized routes, from California’s I-5 in the U.S. to the A2 autobahn in Germany. The data on estimated ranges and costs are drawn from the U.S. EPA as well as directly from manufacturer websites.
The EV Breakdown: Tesla is King of Range
For many consumers, the most important aspect of an electric vehicle is how far they can travel on a single charge.
Whether it’s for long commutes or out-of-city trips, vehicles must meet a minimum threshold to be considered practical for many households. As the table below shows, Tesla’s well-known EVs are far-and-away the best option for long range drivers.
|Vehicle||Range (miles)||Range (km)||MSRP||Cost per mile|
|Tesla Model S Long Range Plus||402||647||$74,990||$186.54|
|Tesla Model X Long Range Plus||351||565||$79,990||$227.89|
|Tesla Model S Performance||348||560||$94,990||$272.96|
|Tesla Model 3 Long Range||322||518||$46,990||$145.93|
|Tesla Model Y Long Range||316||509||$49,990||$158.20|
|Tesla Model X Performance||305||491||$99,990||$327.84|
|Tesla Model 3 LR Performance||299||481||$54,990||$183.91|
|Tesla Model Y Performance||291||468||$59,990||$206.15|
|Chevrolet Bolt EV||259||417||$36,620||$141.39|
|Hyundai Kona Electric||258||415||$37,190||$144.15|
|Tesla Model 3 Standard Range Plus||250||402||$37,990||$151.96|
|Kia Niro EV||239||385||$39,090||$163.56|
|Nissan LEAF e+ S||226||364||$38,200||$169.03|
|Audi e-tron Sportback||218||351||$69,100||$316.97|
|Nissan LEAF e+ SV/SL||215||346||$39,750||$184.88|
|Porsche Taycan 4S Perf Battery Plus||203||327||$112,990||$556.60|
|Porsche Taycan Turbo||201||323||$153,510||$763.73|
|Porsche Taycan Turbo S||192||309||$187,610||$977.14|
|Hyundai IONIQ Electric||170||274||$33,045||$194.38|
|MINI Cooper SE||110||177||$29,900||$271.82|
In an industry where innovation and efficiency are vital, Tesla’s first-mover advantage is evident. From the more affordable Model 3 to the more luxurious Model S, the top eight EVs with the longest ranges are all Tesla vehicles.
At 402 miles (647 km), the range of the number one vehicle (the Tesla Model S Long Range Plus) got 127 miles more per charge than the top non-Tesla vehicle, the Polestar 2—an EV made by Volvo’s standalone performance brand.
Closer Competition in Cost
Though Tesla leads on overall range and battery capacity, accounting for the price of each vehicle shows that cost-efficiency is far more competitive among brands.
By dividing the retail price by the maximum range of each vehicle, we can paint a clearer picture of efficiency. Leading the pack is the Chevrolet Bolt, which had a cost of $141.39/mile of range in 2020 while still placing in the top 10 for range with 259 miles (417 km).
Just behind in second place was the Hyundai Kona electric at $144.15/mile of range, followed by the Tesla Model 3—the most efficient of the automaker’s current lineup. Rounding out the top 10 are the Nissan LEAF and Tesla Model S, but the difference from number one to number ten was minimal, at just over $45/mile.
|Top 10 All-Electric Vehicles by Cost Efficiency|
|Vehicle||Cost per mile|
|Chevrolet Bolt EV||$141.39|
|Hyundai Kona Electric||$144.15|
|Tesla Model 3 Long Range||$145.93|
|Tesla Model 3 Standard Range Plus||$151.96|
|Tesla Model Y Long Range||$158.20|
|Kia Niro EV||$163.56|
|Nissan LEAF e+ S||$169.03|
|Tesla Model 3 LR Performance||$183.91|
|Nissan LEAF e+ SV/SL||$184.88|
|Tesla Model S Long Range Plus||$186.54|
Higher Ranges and Lower Costs on the Horizon
The most important thing to consider, however, is that the EV industry is entering a critical stage.
On one hand, the push for electrification and innovation in EVs has driven battery capacity higher and costs significantly lower. As batteries account for the bulk of weight, cost, and performance in EVs, those dividends will pay out in longer ranges and greater efficiencies with newer models.
Equally important is the strengthening global push for electric vehicle adoption. In countries like Norway, EVs are already among the best selling cars on the market, while adoption rates in China and the U.S. are steadily climbing. This is also being impacted by policy decisions, such as California’s recent announcement that it would be banning the sale of gasoline cars by 2035.
Meanwhile, the only thing outpacing the growing network of Tesla superchargers is the company’s rising stock price. Not content to sit on the sidelines, competing automakers are rapidly trying to catch up. Nissan’s LEAF is just behind the Tesla Model 3 as the world’s second-best-selling EV, and Audi recently rolled out a supercharger network that can charge its cars from 0% to 80% at a faster rate than Tesla.
As the tidal wave of electric vehicle demand and adoption continues to pick up steam, consumers can expect increasing innovation to drive up ranges, decrease costs, and open up options.
Correction: A previous version of this graphic showed a European route that was the incorrect distance.
3D Map: The U.S. Cities With the Highest Economic Output
The total U.S. GDP stands at a whopping $21 trillion, but which metro areas contribute to the most in terms of economic output?
3D Map: The U.S. Cities With the Highest Economic Output
At over $21 trillion, the U.S. holds the title of the world’s largest economy—accounting for almost a quarter of the global GDP total. However, the fact is that a few select cities are responsible for a large share of the country’s total economic output.
This unique 3D map from HowMuch puts into perspective the city corridors which contribute the most to the American economy at large.
Top 10 Metros by Economic Output
The visualization pulls the latest data from the U.S. Bureau of Economic Analysis (BEA, 2018), and ranks the top 10 metro area economies in the country.
One thing is immediately clear—the New York metro area dwarfs all other metro area by a large margin. This cluster, which includes Newark and Jersey City, is bigger than the metro areas surrounding Los Angeles and Chicago combined.
|Rank||Metro Area||State codes||GDP (2018)|
|#1||New York-Newark-Jersey City||NY-NJ-PA||$1.77T|
|#2||Los Angeles-Long Beach-Anaheim||CA||$1.05T|
|#7||Houston-The Woodlands-Sugar Land||TX||$0.48T|
Coming in fourth place is San Francisco on the West Coast, with $549 billion in total economic output each year. Meanwhile in the South, the Dallas metroplex brings in $478 billion, placing it sixth in the ranks.
It’s worth noting that using individual metro areas is one way to view things, but geographers also think of urban life in broader terms as well. Given the proximity of cities in the Northeast, places like Boston, NYC, and Washington, D.C. are sometimes grouped into a single megaregion. When viewed this way, the corridor is actually the world’s largest in economic terms.
U.S. States: Sum of Its Parts
Zooming out beyond just these massive cities demonstrates the combined might of the U.S. in another unique way. Tallying all the urban and rural areas, every state economy can be compared to the size of entire countries.
According to the American Enterprise Institute, the state of California brings in a GDP that rivals the United Kingdom in its entirety.
By this same measure, Texas competes with Canada in terms of pure economic output, despite a total land area that’s 15 times less that of the Great White North.
With COVID-19 continuing to impact parts of the global economy disproportionately, how will these kinds of economic comparisons hold up in the future?
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