You may select a country by clicking on it and then clicking 'Select Country' in the popup bubble. Deselecting a country can be done by clicking on the country again and click Deselect. When a country is selected it will narrow down the drug and lineage charts. When you select a country, it will be outlined in red.
You may select a drug by clicking on any of it's bars. Selecting a drug will filter the world map and lineage chart by the selected drug(s). to Clicking anywhere else on the chart will deselect.
You may select grouped or stacked to change the bar type.
Selecting/deselecting a circle from the legend in the top right corner includes/excludes that data type.
Hover over any arc to view the number of strains in each lineage group. Clicking an arc narrows down the plotted data, and clicking the inner circle zooms out to the default view. Selecting a lineage arc or the inner circle will filter the world map and drug chart by the selected lineage(s). Click the "Clear filtering" button to deselect all lineages.
You may select multiple gene locuses to focus on by clicking the rows. Clicking on the arrows to the right of a column toggles the sort order of the gene locuses between ascending and descending order of that column.
Here you can search for specific mutations to compare them next to each other, the graph will show how often they show up in resistant strains.