In order to face this pandemia which takes place in our mediums of life, the international community considered to be good and paramount; to establish one day devoted to the fight of the AIDS insofar as several populations remain still ignorant on the devastations that this one generates. Indeed, the world Day devoted to the fight against AIDS was born in 1988, at the time of the Summit of the Ministers for health on the prevention programs of the AIDS. 20 years after, the disease continues to be propagated and kill. L' epidemic of AIDS remains a major stake of individual and public health. Also, the international community wishes to inform with the greatest d' number; individuals on the danger they run. International organizations such WHO and its various partners hope to find in this special day the means of gathering a maximum of people which can help them to overcome and not to leave free court to this disease. The objectives of the international community are thus to carry complete informations on the virus to the populations, even most moved away, to make regress this pandemia. This day created for the occasion is thus the surest means to fight against the AIDS. We have to keep in mind that most of the populations in this world die from it.Today, more than 17 young girl and woman million live with the HIV, which represents nearly 50% of all the people to the catches with the disease in the world, and nearly 60% of those alive with the HIV in sub-Saharan Africa. The figures are as well alarming at the male populations, which in particular makes react, since 1988 the international community of which will, with l' WHO is to overcome this disease; d' where d' creation; one day international of the fight against AIDS.