In a word, when the epidemic is still exist, the bull will still exist.
The pandemic might have been one of the cause why bitcoin is still on bull run but there are a lot more factors that keeps it on going bull. I think even when the epidemic ends this year, bitcoin will still be able to increase even though the value keeps on corrections every time. It's a good thing that we were able to escape the dump that occured last 2018 and we are now seeing a lot of new ATHs for bitcoin. There's a high probability that up until 2022, bitcoin will still be on a bull run, it might even reach a $100k ATH that time so let us keep our hopes high on bitcoin and keep on investing.