Covid-19 virus?

Yes, it is. Covid-19 is a terrible virus that is WAY worse than a heart attack. You can survive one heart attack. But not this virus. It lives in your body forever. There's no cure. Only a vaccine.

Covid19 is less dangerous than a crosswalk.

There may be a medicine that can treat the virus. It is more dangerous if you're in the vulnerable age range.

A heart attack will be much more dangerous than copvid 19 for most of us. There is no cure for the virus, and vaccine seems likely to be 15-24 months away.

There's no medical cure - and any vaccine is going to be 12 months off at this stage.

It is highly infectious and is likely to kill around 2% of those who catch it (generally old / medically vulnerable).

How do they compare? If you get a heart-attack and nobody helps in the first 6 minutes, you are dead.

If you get sick from covid-19, you have more than 95% chance of surviving it.

I'm not sure what "cure" you are referring to.

What we are "afraid" of is not so much the virus itself as it's capability to infect a whole lot of people in a rather short time. How will we be doing groceries when most shop-personnel and truckdrivers are too sick to work?

Who will tend to sick people when most nurses are sick?

Because it has the potential to swamp the healthcare systems. The UK has changed their stance of keeping things open and allowing gatherings today with the release of a study that estimated 250000 deaths there and over 1000000 in the US if that approach is followed. 

i not sure, maybe