There are a lot of way to explain the spread of coronavirus. One way to explain it is from a purely biological point of view – the biological underpinnings of how the virus grows, replicates, spreads etc.
However, there are other ways to explain the coronavirus problem. Part of the spread of the virus is due to the health care practices in the countries where it is found. The spread within China could also be explained in part by the way the Chinese government and media has handled the situation.
An essay on May 2020 Prescribed Title #5 with this RLE could compare and contrast the different theories that explain the growth of the coronavirus. The essay would need to argue whether one theory or multiple theories are necessary to explain the spread of the coronavirus.