have a weakened immune system
1immune system — Anat. a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system… …
2Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… …
3reproductive system disease — Introduction any of the diseases and disorders that affect the human reproductive system (reproductive system, human). They include abnormal hormone production by the ovaries or the testes or by other endocrine glands, such as the pituitary …
4Chickenpox — For other uses, see Chickenpox (disambiguation). Varicella redirects here. For other uses, see Varicella (disambiguation). Chickenpox Classification and external resources Child with varicella disease …
5digestive system disease — Introduction any of the diseases that affect the human digestive tract. Such disorders may affect the esophagus, stomach, small intestine, large intestine (colon), pancreas, liver, or biliary tract. A prevalent disorder of the digestive… …
6political system — Introduction the set of formal legal institutions that constitute a “government” or a “ state.” This is the definition adopted by many studies of the legal or constitutional arrangements of advanced political orders. More broadly defined,… …
7Rh blood group system — Rh redirects here. For Siddharta, see Rh (album). For the band, see The RH Factor. The Rh (Rhesus) blood group system (including the Rh factor) is one of the currently 30 human blood group systems. It is clinically the most important blood group… …
82009 flu pandemic in the United Kingdom — Main article: 2009 flu pandemic Further information: 2009 flu pandemic by country 2009 swine flu pandemic in the UK Disease Swine flu Virus strain H1N1 Arrival date 27 April 2009[1] Origin …
9Zostavax — is a live vaccine developed by Merck Co. which has been shown to reduce the incidence of herpes zoster (known as Shingles) by 51.3% in a pivotal phase III study of 38,000 adults aged 60 and older who received the vaccine. The vaccine also reduced …
10Idiopathic CD4+ lymphocytopenia — (ICL) is a very rarecite journal author=Walker UA, Warnatz K title=Idiopathic CD4 lymphocytopenia journal=Curr Opin Rheumatol volume=18 issue=4 pages=389–95 year=2006 month=July pmid=16763460 doi=10.1097/01.bor.0000231908.57913.2f url=http://meta …
