Human Immunodeficiency Virus (HIV). HIV stands for human immunodeficiency virus. If left untreated, HIV can lead to the disease AIDS (acquired immunodeficiency syndrome). Unlike some other viruses, the human body cannot get rid of HIV. That means that once you have HIV, you have it for life.
Infant jaundice is most often caused by an excess of bilirubin. Bilirubin is the waste that remains after hemoglobin (the predominant protein in red blood cells) is released from the breakdown of the red blood cells that carry oxygen throughout the body.
Jaundice is caused by the build-up of bilirubin in the blood. Bilirubin is a yellow substance produced when red blood cells are broken down. Jaundice is common in newborn babies because babies have a high level of red blood cells in their blood, which are broken down and replaced frequently. The liver in newborn babies is also not fully developed, so it's less effective at removing the bilirubin from the blood.