If you think your opponent will take statistics out of context, then it makes sense to try to keep those statistics hidden.
In the absence of other considerations, sure. Some would say you have an obligation to a third party (taxpayers, citizens who have nominally put their trust in the executive branch which has in turn created the CDC), and/​or to a scientist’s ethos of giving the most accurate possible data, to publish the statistics regardless of whether it helps your political opponents. Some would say that if you break that obligation, then you have betrayed the citizens and the ideals of science, and should be thrown out of your job at the very least.
In the absence of other considerations, sure. Some would say you have an obligation to a third party (taxpayers, citizens who have nominally put their trust in the executive branch which has in turn created the CDC), and/​or to a scientist’s ethos of giving the most accurate possible data, to publish the statistics regardless of whether it helps your political opponents. Some would say that if you break that obligation, then you have betrayed the citizens and the ideals of science, and should be thrown out of your job at the very least.