Analyzed global vaccination trends using Python, Pandas, Matplotlib, Seaborn, and Squarify on 86,512 records. Key insights include vaccination growth over time, country-wise distribution, and completion rates. Identified trends in supply chain efficiency and policy impacts, showcasing my skills in data cleaning, analysis, and visualization.
Key Takeaways
- China leads global vaccination efforts by a massive margin, driving the global totals far higher than any other country.
- While partial vaccination rates are rising worldwide, full vaccination rates consistently lag behind, especially in most countries.
- A small group of countries (like the Philippines and Ethiopia) stand out for having more fully vaccinated people than partially vaccinated, bucking the global trend.
- The top vaccines (Oxford/AstraZeneca, Moderna, Pfizer/BioNTech, Johnson & Johnson) dominate worldwide because of wide international distribution, particularly in high-volume countries like France, Spain, and Canada.
- Global vaccination campaigns heavily rely on a few major sources, with the World Health Organization playing the largest role across 74 countries.
Summary of Global COVID-19 Vaccination Insights
Total Vaccinations Growth
- From February 2, 2021, to March 29, 2022, total global vaccinations rose sharply, reaching 150 million doses. China leads this surge with 1.8 billion doses administered, followed by India (755 million) and the United States (329 million). The large gap between China and India highlights China's significant contribution. The median peak for total vaccinations over time was 17 million, recorded on March 19, 2022. Daily vaccinations fluctuated considerably: from December 14, 2020, to June 27, 2020, daily doses peaked at 201,000, then dropped to 79,000 by March 13, 2022, before surging again to 281,000 over a nine-day period.
Fully vs. Partially Vaccinated Populations
- While both fully and partially vaccinated numbers have increased, partially vaccinated individuals consistently outnumber fully vaccinated ones. Even when measured per hundred people, partially vaccinated rates surpass fully vaccinated rates.
Lowest and Highest Vaccination Rates
- Countries with the lowest total vaccinations (below 5,000 doses) include Burundi, Falkland Islands, Saint Helena, Montserrat, Niue, Tokelau, and Pitcairn, with Pitcairn recording the lowest at just 69.6 doses. However, the highest daily vaccinations per million are seen in Falkland Islands, Saint Helena, Tokelau, Pitcairn, and Cuba.
Correlation Patterns
- There is generally a strong correlation between partially and fully vaccinated rates across countries, with few exceptions. Luxembourg notably stands out, showing no clear correlation, with 49.4 partially vaccinated per hundred but only 2.9 fully vaccinated per hundred.
Daily Vaccination Surges
- March 2021 marked a significant surge, with daily vaccinations per million surpassing 100,000. Four days that month saw over 100 million doses administered in a single day, peaking at 117 million. A similar surge occurred in April, reaching up to 92 million.
Most Widely Used Vaccines
- The top vaccines globally are Johnson & Johnson, Moderna, Oxford/AstraZeneca, and Pfizer/BioNTech. Johnson & Johnson leads, being distributed across 17 countries; Moderna, AstraZeneca, and Pfizer/BioNTech follow with 15 countries; AstraZeneca alone reaches 20 countries, making it the most widely distributed. These vaccines dominate due to broad international distribution, particularly to Canada, France, and Spain with France exceeding 70 million total vaccinations.
Countries with More Fully Vaccinated Than Partially Vaccinated
- In most countries, partially vaccinated numbers are higher. However, exceptions include the Philippines (21 million fully vaccinated vs. 8.1 million partially vaccinated) and Ethiopia (19 million fully vaccinated vs. 5.3 million partially vaccinated). Altogether, 12 countries show a higher number of fully vaccinated individuals compared to those partially vaccinated.
Leading Vaccine Source
- The World Health Organization (WHO) leads vaccine distribution, supporting 74 countries. The Ministry of Health follows with 37 countries, and the SPC Public Health Division comes third with 14 countries. In terms of vaccine variety, WHO distributes 44 types, followed by the Ministry of Health with 26, while SPC ranks fifth with five types.