We can predict many things and make projections on Corona crisis based on available data but unluckily, the quality of data and their source are not beyond doubt. The previous projections based on supplied data have been already failed in many third world countries and it's alarming for global control on Corona pandemic.

For people who are comparing the data and attempting to divine how different countries' epidemics stack up against each other, experts have a warning: nations have different reporting standards, different approaches to testing, and different approaches to tracing cases, all of which makes such comparisons dangerously misleading.

Sheila Bird, a renowned British bio-statistician and professor at Cambridge University, says testing and reporting have been inconsistent even within individual countries, let alone internationally. Rules on who gets tested -- and where and when -- can evolve, and these changes and time lapses are not necessarily captured in the data published by different governments.

Source: March 26, CNN