No theory " is proven correct " but the evidence supporting the germ theory of disease make it the best explanation of this phenomenon we have.
Theories explain things, such as the fact of infectious disease, but there is always new information and evidence that can be brought to theories. In this case, all the evidence makes this theory highly certain, but sciences great strength is the tentativeness of all it's conclusions and the possibility of change.
Theories explain things, such as the fact of infectious disease, but there is always new information and evidence that can be brought to theories. In this case, all the evidence makes this theory highly certain, but sciences great strength is the tentativeness of all it's conclusions and the possibility of change.