Since Trump isn't a Dr or scientist or medical professional....anything he's been saying is based on the information relayed to him. So it's not a matter of whether he's lying, being truthful or not or trustworthiness...….but the amount of information available to him, that keeps changing on a daily basis.
The information overload hyped by the media since the virus hit US soil has been contradictory. Most MSM's headlines and resulting stories are written to strike fear & panic, while actual medical sources are saying to use common sense practices to avoid exposure, and risk of infection.
If you actually look at the real numbers of this supposed 'GLOBAL PANDEMIC'...….yes thousands are infected and numbers are continuing to climb......and 3,400(?) have died from it with the greatest numbers in China. In the US, our current death rate from the virus is 17 with more than half that were residents of the same nursing home. The majority of the others are also elderly with either underlying health problems and/or had travelled abroad.
Then compare that to previous flu outbreaks (swine, bird, Sars, Mers, etc) where many more had died within a larger scope of dynamics (not just elderly, but kids as well, that seem to be immune from this one)