An example is touching a cold sore on your mouth and then touching your genital area before washing. You can infect the genital area with the herpes virus. They do not live inside the cells as viruses do. Complications can also happen because the disease or infection causes symptoms that result in a reaction from you. That reaction causes the complications.
Examples are oral sex, intercourse.
When a virus, bacteria, or other organism is in your body and you don't have any symptoms. Latent periods can be short or long. It may also be called the remission time for a disease. An example is a virus or bacteria. It is a way of transmitting certain diseases.