You can say in more detail why blockchain technology can repel this dangerous disease caused by new virus strain Corona. I only know that scientists specialized in microbiology can develop vaccines to prevent this virus for the world community. And it will take at least a year for the vaccine to become available for this new strain. That will create a new global economic crisis.
According to the WHO report, there are six corona vaccines that have been registered. Three of them came from Chinese laboratories. Three vaccines from outside of China plus 1 vaccine from China are still being processed in stage 1. While two vaccines from China, one is undergoing stage 2 while the other one has completed stage two and is ready to be produced. considering stage three is a precautionary measure by comparing with similar vaccines for the same disease. Considering that there is no corona vaccine yet and because of the pandemic clause the three stages maybe skip. The rest is just a permit for marketing authorization.
https://www.scmp.com/news/china/society/article/3080929/coronavirus-clinical-trial-begins-third-vaccine-candidate-chinaSo that the spread of corona soon ends with minimal casualties, unlike in Italy the way is to stay as much at home as possible as long as possible. So that the corona distribution chain ends soon. But the government must also guarantee the lives of many people so that hungry stomachs do not return home. What is happening in Jakarta now because the government is hesitant not to do a total lockdown, so that the spread of corona does not immediately subside which results in people who do not eat back on the road with consideration, it is better to die of corona than to see families die because they do not eat.