There’s also a lot of politics involved. Fox News pundits are insisting the escalating seriousness of the coverage is a plot to make Trump look bad, and shouting about how influenza kills way more people, and it’s no big deal.
It's amusing because when Trump instituted the travel ban early, it was Fox which was playing up the threat and all other news channels which were playing it down. Then a month later, they switched positions. This nonsense is why we have international organizations like the WHO, which are made of actual experts rather than pundits.