What way does pathogenic bateria or virus typically enter the body?

It depends on the bacteria and virus. Viruses can come through the nose, mouth, or an open cut. And bacteria can come through the nose, mouth, open cut, or from the GT tract. Why I say the GT track is because we have bacteria in our gut and if a certain type of bacteria got a chance to go somewhere else besides the gut then you could have an infection from this bacteria because it is not in its normal acidic conditions