Miscellaneous Viral infections - chickenpox, dengue, herpes zoster, herpes simplex, measles, rsv, chikungunya. These are the most common of all infections. They are usually self limiting. Most of them dont have any specific treatment. The recovery from these illnesses is usually good, but dreaded complications are well known. Early diagnosis is the clue in such cases. Some of these conditions are preventable through appropriate vaccines, like chickenpox, measles, influenza, rabies. EBV and CMV are self limiting illnesses in people with normal immune system. But in patients like ones who are on immune suppression medicines, chemotherapy and transplant recipients these can even be fatal if diagnosis is delayed.