Is your feature request related to a problem? Please describe.
We need to now keep track of the death age frequency table and gender splits.

Describe the solution you'd like
I have started a file that needs to have someone update and also fill historical information.

https://github.com/dsfsi/covid19za/blob/master/data/covid19za_timeline_death_statistics.csv

The Symptom Report allows the user to proceed past the location step without entering a location. Data without a location is not useful and also causes a server error. The location in this step (but not the tutorial step) should be required.

Describe the solution you'd like
Make cases table downloadable for the end-user, by use of existing download button.
Keeping the .csv format

Screenshot:

Since we have a large number of countries and a limited set of colors, marker symbols are useful to distinguish between countries. However they are quite small at the moment. One would have to check both on laptop and mobile screen to choose the optimal marker size.

See https://github.com/covid19-dash/covid-dashboard/blob/master/make_figures.py#L60 for the definition of scatter traces and http

PULL TO REFRESH INDICATOR HAS BEEN ADDED USING BLOC PATTERN