Did they, though?
Information of some kind of flu/pneunomia-like sickness in central China was available on December 31st, 2019, the day I learned about it from our local news media. Chances are the CDC had that information before I, a non-medical civilian, had it.
On January 15th, with me noticing a significant difference between what the Chinese said and what they did in Wuhan, I realised shit's going to hit the fan. I bought a few extra conserves when I was going for groceries, some extra toilet paper, started to invest in my home office situation, "just in case". Nothing too prepper-style crazy, but enough to be prepared. And - figuring that any flu/pneunomia-style sickness would also be commuted by coughing, I got me some 100 cheap masks, some nitrile gloves, for good measure (arguably didn't use them much), and some isopropyl alcohol for disinfection. You know, things that I see doctors using when they get into a potentially infectious zone.
No-one at the CDC, packed with medical professionals, watched Chinese news reports and did some "what could possibly go wrong" reasoning?
Around mid-march, people in the west finally started panicking. By now, what I got over two months, slow and steadily, they needed to get all at the same time. Suddenly, they realised that this is not just a Chinese thing. "Don't panic buy'", the powers to be claimed, "There's no need! Supply chains will hold". Well, today we know they didn't, and back then, people sometimes found themselves lacking basic necessities.
"No need to buy masks, they don't work", the CDC (and health officials around the world, with the exception of countries who use masks every time it's flu season) said - yet every single doctor and every single nurse I've ever seen dealing with Covid Patients go in like medieval knights in armor.
I've been vaccinated trice by now, having made the appointment for the booster shot two months in advance. "No need to do that", we (non-us) were being told. "there's enough vaccinations around for everyone". Well, right now over here (non-us), we have people standing in line in the cold for up to four hours, and vaccinations are actually running out quickly, because the former government decided to not order enough, let the next guy deal with it.
You are right not to trust Fox, Trump, or Breitbart News. But there's also no reason to believe news media or official offices on "your" side of the turf war. They will all lie to you. Watch like they are doing, closely, and make your own decisions.