Presented by Rumana Akter Id: 25015041 Spring 25 Section : 2 Department of Public health Canadian University of Bangladesh
Data Source: The analysis utilizes the WHO-COVID-19-global-daily-data.csv dataset, which tracks cumulative cases and deaths globally.
Tools Used: R programming with tidyverse for data cleaning and leaflet for interactive geographic visualization. 2. The Global Starting Point The First Case: According to the dataset, the first reported cases occurred in China.
Map Visualization: Using specific coordinates (Lat: 35.86, Long: 104.19), we can see the epicenter where the global pandemic began.
Interactive Element: The leaflet map uses a red circle marker to highlight this origin point, providing a clear visual of the initial outbreak.
Top 10 Global Impact Zones Highest Case Loads: The presentation highlights the ten countries with the highest cumulative cases.
Geographic Distribution: By joining the COVID-19 data with a world map (using the rnaturalearth library), we visualize which regions were most heavily impacted.
Key Insight: This map allows us to compare the scale of the pandemic across different continents and national borders.
Primary Focus: The map visualizes the scale of the pandemic’s fatal impact across different geographic borders.
The Red Highlight: On this map, the United States appears in red because it has the highest cumulative death toll globally (over 1.2 million deaths).
Purpose: This map is intended to show the geographic distribution of high-mortality zones, allowing viewers to quickly identify which regions faced the most severe outcomes in terms of absolute loss of life.
According to global health tracking data, the deaths are distributed across the country with significant concentrations in:
California: ~112,443 deaths.
Texas: ~104,793 deaths.
Florida: ~95,206 deaths.
New York: ~83,374 deaths.
The Arrival: The map identifies the first reported case in Bangladesh based on the earliest date where Cumulative_cases were greater than zero.
Coordinates: The center of this regional analysis is set at 23.6850° N and 90.3563° E.
Visual Marker: A blue circle marker labels the specific date the first case was recorded in the country.
Based on recent World Health Organization (WHO) and global health data, here is information about the 10 most affected countries by cumulative COVID-19 cases:
United States: The U.S. has reported the highest number of total cases globally, exceeding 100 million. It also recorded the highest absolute number of deaths, with over 1.2 million fatalities.
India: India ranks second globally in total cases, reporting over 45 million infections. Its first reported case occurred on January 30, 2020.
France: One of the most severely affected European nations, France has surpassed 39 million cases. Retroactive testing suggested the virus may have been present in the country as early as late December 2019.
Germany: Germany has recorded over 38 million total cases. Its first case was reported on January 27, 2020.
Brazil: Brazil has reported over 37 million cumulative cases. It ranks second globally in total deaths, with over 700,000 fatalities reported.
South Korea: South Korea has recorded approximately 34 million cases. Its first case was reported on January 20, 2020.
Japan: Japan has reported over 33 million cases. Similar to South Korea, its first official case was identified on January 20, 2020.
Italy: The first European country to experience a major outbreak, Italy has recorded over 26 million cases. It reported its first case on January 30, 2020.
United Kingdom: The UK has recorded more than 25 million cumulative cases and over 230,000 deaths.
Russia: Russia has reported over 24 million cases and more than 400,000 deaths. Its first reported case was on January 26, 2020.
Conclusion: The Power of Spatial Data Interactivity: Interactive maps allow researchers to hover over specific regions to see real-time totals for cases and deaths.
Future Applications: These geographic models are essential for understanding transmission patterns and planning future public health responses.