On an average, it takes four years for the symptoms of tuberculoid leprosy to develop.

VUR alone does not usually cause symptoms. Symptoms develop when an infection has set in.

Yes; it is developing into PID.

Many people with Herpes Simplex will never develop symptoms, but they can still pass it on to others. Those who do develop symptoms can look forward to painful blisters, flu like symptoms, and in extreme cases even loss of hearing.

Unfortunately this varies greatly. Some people will develop symptoms within a few days. Some will never develop any symptoms.