A platelet count of less than 150,000 platelets per microliter is lower than normal. If your blood platelet count falls below normal, you have thrombocytopenia. However, the risk for serious bleeding doesn't occur until the count becomes very lowâless than 10,000 or 20,000 platelets per microliter.
Health related question in topics Conditions Illness .We found some answers as below for this question Is chicken pox a bacterial or viral disease,you can compare them. Is chicken pox a bacterial or viral disease. Chickenpox A highly infectious viral disease also known medically as varicella, in many countries, it is always called varicella [ Source: http://www.chacha.com/question/is-chicken-pox-a-bacterial-or-viral-disease ] More Answers to  Health related question in topics Conditions Illness .We found some answers as below for this question Is chicken pox a bacterial or viral disease,you can compare them.
Varicella Pneumonia. Lung infection (pneumonia) caused by the chickenpox virus is an uncommon complication of chickenpox. It develops when the chickenpox virus travels to the lungs. Varicella pneumonia can occur 2 to 10 days after the chickenpox rash.Fever and cough are usually the first signs.Most people recover from varicella pneumonia. Adults who get this condition may become very sick. 2  Varicella pneumonia is the most common cause of death in adults who get chickenpox. 3  Pregnant women. 4  Pregnant women who have chickenpox during the last part of pregnancy are at risk for getting varicella pneumonia, which can lead to severe illness or death.