Trying to apply logic, I think the US healthcare system is wholly inadequate to deal with a widespread epidemic within its borders. Whist ostensibly of a generally high standard, their system is too fragmented and disjointed and the historical absence of free healthcare at the point of delivery will provide a cultural obstacle that will be difficult (maybe even impossible) to overcome, even if such a limitation is temporarily lifted. They have (I suspect) the largest population on the planet with (largely self-inflicted) underlying health issues, principally centred around morbid obesity, which this disease will cut a swathe through, as well as their elderly who comprise a significant part of their population.
Think their numbers will be far worse than ours, as we seem to be running a co-ordinated policy around hospitals etc.
This will, in turn, give rise to significant public order issues, which present particular problems due to widespread gun ownership and the prevailing culture which encourages their use.
It could get very ugly indeed.