Instead come in, muddle along, and infect everyone.
I'm not saying that you shouldn't consider staying home, or that you shouldn't consider your coworkers health while making the decision. If company productivity is critical to you (keep company afloat) it's in your interest to value it highly as well, if not it is one of the weakest arguments.
It's the employer's responsibility to maximize productivity across their work force. If they want to reduce infection to maximize productivity then it's their responsibility to make sure employees have enough sick time. If management doesn't care enough to have a reasonable policy, why should individual employees care about overall productivity?
If my being sick is a problem with my employer, I am more than happy to let him reduce the productivity of his employees.