# Filter out some countries with very high case/population ratio
# Filter out some countries with very high case/population ratio
countries_over_thresh = [c for c in countries_over_thresh if c not in set(['San Marino', 'Iceland'])]
countries_over_thresh = [c for c in countries_over_thresh if c not in set(['San Marino', 'Iceland'])]
```
```
%% Cell type:markdown id: tags:
%% Cell type:markdown id: tags:
# Questions About COVID-19 and Its Spread
# Questions About COVID-19 and Its Spread
Understanding the spread, distribution, and deadliness of COVID-19 is difficult, despite the data available about it. Differences in rates of testing, quality of data, demographics, etc. make it difficult to compare data between countries.
Understanding the spread, distribution, and deadliness of COVID-19 is difficult, despite the data available about it. Differences in rates of testing, quality of data, demographics, etc. make it difficult to compare data between countries.
All this needs to be considered when looking at the plots below. But despite those caveats, I found it helpful to plot the raw data, even though direct comparisons between countries might not be inaccurate.
All this needs to be considered when looking at the plots below. But despite those caveats, I found it helpful to plot the raw data, even though direct comparisons between countries might not be inaccurate.