It is hard to extract what the true mortality rate is for CV19. Most places have social distancing in place. There is the question of viral load which seems to be the reason why many health care workers are falling ill -- social distancing is lowering that statistic. Many governments seem to be motivated to downplay their own fatality numbers; even "all cause mortality" may not give accurate data at this point as many statisticians aren't working or getting accurate data. We're not going to know the real fatality rates for a long time.
You could kinda extract some notion by the cluster f### of what's happening in the United States. We're going to pass 80,000 today. 2018 had 61,000 total flu deaths in the USA. We're not anywhere near the end of the outbreak here. Comorbidity is obviously a factor, but it is also a factor with the flu.