Aids in the late stage of infection with the Human Immunodeficiency Virus (HIV). AIDS (Acquired immune deficiency syndrome) can take around 7-10 years to develop after infection with HIV. HIV is transmitted through semen and vaginal fluids, infected blood and blood products, infected mother to her baby before birth, during birth or through breast milk.

Cancer is a general term used to describe over 200 individual diseases. These diseases progress differently over a period of time but share certain characteristics that includes development within any tissue of a malignant growth derived from abnormalities of the host.

1. What are the different blood groups ?

There are four identification blood (land Steiner1900). They are A, B, AB, O. In 1940, Karl Land Steiner discovered the Rh (Rhesus) blood group system. If RH factor is present, then the blood is designated as '+' otherwise '-' . For e.g. 'O+' ( O group with RH factor) or 'O-' (O Group without Rh). All -ve groups are rare. Among them AB is much more rare.

High blood pressure or hypertension, affects people of all races, sexes, ethnic origins, and ages. Various causes can trigger this often symptomless diseases. Since hypertension can increase one's risk for stoke, heart attack. kidney failure, and congestive heart failure, it is recommended that individuals have a blood pressure reading at least once every 2 years (more) often if advised by physicians).

A 60 years US grandmother, blind for nearly a decade, has recovered her sight after surgeons implanted a tooth in her eye as a base to hold a tiny plastic lens, her doctors said.