We have not yet entered into the End Times, the first part of the tribulation. And one of the sufferings of that time is the fourth horseman, which is death by a variety of causes, including disease (epidemics, pandemics).
But the current pandemic, Covid-19, is very severe. So we can expect disease epidemics that are worse than Covid-19 in the not-so-distant future, as part of the sufferings of the tribulation. Worse than Covid-19. Think about that.