With all eyes on the COVID-19 pandemic and how its impact will be felt over the coming weeks and months, people are being bombarded with all kinds of noise and speculation.
Between a deadly virus, looming economic effects, and numerous government shutdowns, it’s clear that a fertile breeding ground has been created for misinformation, rumors, conspiracy theories, hot takes, and other potentially misleading content.
7 Indispensable COVID-19 Resources
At Visual Capitalist, it’s our goal to use data-driven visuals to explain the world around us.
In the last week alone, we’ve had more than 10 million people visit our site — many of them trying to understand more about COVID-19 and its effects on the economy and society.
With that in mind, we thought we’d curate a list of quality information on the virus and its impact. These COVID-19 resources are all from fact-driven, reliable sources, with some of them even being created by our in-house team and shared to our free daily mailing list.
On the below list, we start with the more contextual resources (understanding how the virus works, pandemic history, etc.) and then progress to real-time dashboards and up-to-date data.
Click any image below to see the full resource or dashboard. Many are updated daily or in real-time.
1. How Coronaviruses Work
What is a coronavirus, and how does COVID-19 fit into the mix?
This educational scrolling infographic by SCMP walks you through some of the more familiar types of coronaviruses, how they spread, and how they affect the human body.
It also relates COVID-19 to other coronaviruses that cause diseases such as Mers, Sars, and even the common cold.
2. The History of Pandemics
On March 11th, the World Health Organization declared COVID-19 a pandemic.
In this infographic, we look at the data to show you the history of pandemics — all the way from the Black Death to how the current COVID-19 situation. It helps give the historical context on how bad a pandemic can be. It’s also updated every day so you can see how COVID-19 compares to the impact of these previous events.
3. Coronavirus Simulator: Limiting the Exponential Spread
Why does the virus spread at an exponential rate, and what techniques can be used to mitigate that spread?
This fantastic interactive page by the Washington Post actively simulates what happens when the virus spreads normally, contrasting it to how it may spread in a forced quarantine environment or when social distancing is practiced.
4. Real-time COVID-19 Map
If you haven’t seen this useful real-time dashboard by Johns Hopkins University yet, it’s worth bookmarking right now.
We check the resource every day, and it has the latest numbers for COVID-19 cases, deaths, recoveries, and more — and it’s all sorted by country and/or state and province. Importantly, it also updates in real-time, so you always know you are getting the latest numbers.
5. Which Countries are “Flattening the Curve”?
Our post on which countries are “flattening the curve” has had over a million views in the last week alone, and it features the above interactive graph from Our World in Data.
Go to the post itself to see a bigger version of the logarithmic chart, which plots the progress of different countries in flattening the curves of COVID-19 infections. The interactive chart updates daily based on the latest numbers, and you can actually search for any country by using the “Search” button. Using the filters on the right side, you can also sort by region as well.
6. Tracking the Coronavirus: The Latest Figures
Even though the Financial Times is a subscription-based website, it recently published this useful COVID-19 dashboard and made it accessible to everyone.
It features various charts and tables on the countries affected, as well as ongoing assessments on the economic damage caused by the virus. Like many of the other COVID-19 resources featured on this list, it is updated on a daily basis.
7. COVID-19 Stats and Research
The above graphic is one of many available on Our World in Data, a fantastic initiative led by economist Max Roser.
Their coronavirus research page has tons of stats, citations, and data for those that want to dive deeper into the situation. It’s also updated very regularly.
Bonus: The Coronavirus Explained, and What You Should Do
While this is less data-driven than the other pieces of content, this animated video by Kurzgesagt still provides a handy explainer on how the virus works.
It’s about eight minutes long, and might help you fill other knowledge gaps.
Please Share These Resources
At a time when misinformation can be dangerous and even deadly, it is worth spreading the above COVID-19 resources to your friends, family, and colleagues.
Many of the above resources are updated daily or they contain evergreen information, meaning they are not going to go out of date any time soon.
Wishing you a safe next few months,
– The Visual Capitalist team
PS: If you have any other great resources to share, please post them in the comments!
Charted: Healthcare Spending and Life Expectancy, by Country
This graphic looks at average life expectancies in countries around the world, compared to each country’s healthcare spending per capita.
Charted: Healthcare Spending and Life Expectancy, by Country
Over the last century, life expectancy at birth has more than doubled across the globe, largely thanks to innovations and discoveries in various medical fields around sanitation, vaccines, and preventative healthcare.
Yet, while the average life expectancy for humans has increased significantly on a global scale, there’s still a noticeable gap in average life expectancies between different countries.
What’s the explanation for this divide? According to World Bank data compiled by Truman Du, it may be partially related to the amount of money a country spends on its healthcare.
More Spending Generally Means More Years
The latest available data from the World Bank includes both the healthcare spending per capita of 178 different countries and their average life expectancy.
Perhaps unsurprisingly, the analysis found that countries that spent more on healthcare tended to have higher average life expectancies up until reaching the 80-year mark.
|Country||Health expenditure per capita (USD, 2019)||Life expectancy at birth, total (years, 2020)|
|United Arab Emirates||$1,843||78|
|Bosnia and Herzegovina||$554||78|
|Antigua and Barbuda||$760||77|
|Iran, Islamic Rep.||$470||77|
|Trinidad and Tobago||$1,168||74|
|St. Vincent and the Grenadines||$355||73|
|Egypt, Arab Rep.||$150||72|
|Sao Tome and Principe||$108||71|
|Papua New Guinea||$65||65|
|Congo, Dem. Rep.||$21||61|
However, there were a few slight exceptions. For instance, while the United States has the largest spending of any country included in the dataset, its average life expectancy of 77 years is lower than many other countries that spend far less per capita.
What’s going on in the United States? While there are several intermingling factors at play, some researchers believe a big contributor is the country’s higher infant mortality rate, along with its higher relative rate of violence among young adults.
On the other end of the spectrum, Japan, Singapore, and South Korea have the highest life expectancies on the list despite their relatively low spending per capita.
It’s worth mentioning that this wasn’t always the case—in the 1960s, Japan’s life expectancy was actually the lowest among the G7 countries, and South Korea’s was below 60 years, making it one of the top 30 countries by improved life expectancy:
View the full-size infographic
In fact, the last 60 years have seen many countries substantially increase their average life expectancies from the 30-40 year range to 70+ years. But as the header chart shows, there are still many countries lagging behind in Africa, Asia, and Oceania.
How High Can Average Life Expectancy Go?
Since people are living longer than they’ve ever lived before, how much higher will average life expectancies be in another 100 years?
Recent research published in Nature Communications suggests that, under the right circumstances, human beings have the potential to live up to 150 years.
Projections from the UN predict that growth will be divided, with developed countries seeing higher life expectancies than developing regions.
However, as seen in the above chart from the World Economic Forum and using UN data, it’s likely the gap between developed and developing countries will narrow over time.
Visualizing the Composition of Blood
Despite its simple appearance, blood is made up of many microscopic elements. This infographic visualizes the composition of blood.
The Composition of Blood
Have you ever wondered what blood is made up of?
With the average adult possessing five to six liters of blood in the body, this fluid is vital to our lives, circulating oxygen through the body and serving many different functions.
Despite its simple, deep-red appearance, blood is comprised of many tiny chemical components. This infographic visualizes the composition of blood and the microscopic contents in it.
What is Blood Made Up Of?
There are two main components that comprise blood:
- Plasma – 55%
Plasma is the fluid or aqueous part of blood, making up more than half of blood content.
- Formed elements – 45%
Formed elements refer to the cells, platelets, and cell fragments that are suspended in the plasma.
Plasma is primarily made up of water (91%), salts, and enzymes, but it also carries important proteins and components that serve many bodily functions.
Plasma proteins make up 7% of plasma contents and are created in the liver. These include:
These proteins keep fluids from leaking out of blood vessels into other parts of the body. They also transport important molecules like calcium and help neutralize toxins.
These play an important role in clotting blood and fighting infections and are also transporters of hormones, minerals, and fats.
- Fibrinogen and Prothrombin
Both of these proteins help stop bleeding by facilitating the creation of blood clots during wound-healing.
Water and proteins make up 98% of plasma in blood. The other 2% is made up of small traces of chemical byproducts and cellular waste, including electrolytes, glucose, and other nutrients.
There are three categories of formed elements in blood: platelets, white blood cells, and red blood cells. Red blood cells make up 99% of formed elements, with the other 1% comprised of platelets and white blood cells.
- Platelets (Thrombocytes)
Platelets are cells from the immune system with the primary function of forming clots to reduce bleeding from wounds. This makes them critical not only for small wounds like cuts but also for surgeries and traumatic injuries.
- White blood cells (Leukocytes)
White blood cells protect our bodies from infection. There are five types of white blood cells with different roles in fighting infections: some attack foreign cells and viruses, some produce antibodies, some clean up dead cells, and some respond to allergens.
- Red blood cells (Erythrocytes)
Red blood cells deliver fresh oxygen and nutrients all over the body. They contain a special protein called hemoglobin, which carries oxygen and gives blood its bright red color.
The lifespan of a typical red blood cell is around 120 days, after which it dies and is replaced by a new cell. Our bodies are constantly producing red blood cells in the bone marrow, at a rate of millions of cells per second.
Abnormal Red Blood Cells
Normal red blood cells are round, flattened disks that are thinner in the middle. However, certain diseases and medical therapies can change the shape of red blood cells in different ways.
Here are the types of abnormal red blood cells and their associated diseases:
Sickle cell anemia is a well-known disease that affects the shape of red blood cells. Unlike normal, round red blood cells, cells associated with sickle cell disease are crescent- or sickle-shaped, which can slow and block blood flow.
Other common causes of abnormally shaped red blood cells are thalassemia, hereditary blood disorders, iron deficiency anemia, and liver disease. Identifying abnormal blood cells plays an important role in diagnosing the underlying causes and in finding treatments.
The Functions of Blood
We know that blood is vital, but what does it actually do in the body?
For starters, here are some of the functions of blood:
- Blood transports oxygen to different parts of the body, providing an energy source. It also delivers carbon dioxide to the lungs for exhalation.
- The platelets, white blood cells, and plasma proteins in blood play an important role in fighting infections and clotting.
- Blood transports the body’s waste products to the kidneys and liver, which filter it and recirculate clean blood.
- Blood helps regulate the body’s internal temperature by absorbing and distributing heat throughout the body.
While we all know that we can’t live without blood, it serves many different functions in the body that we often don’t notice. For humans and many other organisms alike, blood is an integral component that keeps us alive and going.
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