Natural science or science (science) is taken from the Latin word that literally means Scientia knowledge
AIDS stands for acquired immune deficiency syndrome and is the final stage of infection caused by a virus called Human Immunodeficiency Virus or HIV. This virus causes severe damage to the immune system.
Sund and Trowbribge formulate that science is a body of knowledge and processes.
- VIRUS
The virus particles are 100 times smaller than a single bacteria cell. The bacterial cell alone is more than 10 times smaller than a human cell and a human cell is 10 times smaller than the diameter of a single human hair.
1.VIRUS INFLUENZA
Influenza is the generic term for diseases / infections caused by the influenza virus. Influenza viruses are members of the Orthomyxoviridae family of viruses and comprise two genera: influenza A and B viruses, and influenza C virus. Influenza A, B and C viruses are distinguished on the basis of their internal nucleoprotein and matrix proteins which are specific for each viral type. Influenza A viruses are naturally able to infect a range of animal species, including humans, swine, birds, seals and horses. Influenza B viruses, however, infect only humans, while influenza C virus infects humans and swine. Influenza A viruses are further categorized into subtypes that are determined by the antigenicity of the surface glycoproteins, the hemagglutinin (H) and neuraminidase (N). The human influenza A strains currently in circulation are of the H1N1 and H3N2 subtypes.
virus is remarkable,
2.VIRUS HIV AIDS
AIDS stands for acquired immune deficiency syndrome and is the final stage of infection caused by a virus called Human Immunodeficiency Virus or HIV. This virus causes severe damage to the immune system.
AIDS is the sixth leading cause of death among people aged 25-44 in the United States. This is an improvement because it is the number one killer in 1995.
At the end of 2010, about 91.500 people in the UK are living with HIV. Of these, about 1 in 4 (22,000 total) do not know they are infected.
The World Health Organization (WHO) estimates that around 34 million people worldwide are living with HIV. The virus is widespread, especially in sub-Saharan Africa, such as South Africa, Zimbabwe, and Mozambique.
Unlike most transmissible diseases (colds, flus, measles, etc.), AIDS is not transmitted through sneezing, coughing, eating or drinking from common utensils, or merely being around an infected person. Casual contact with HIV infected persons does not place others at risk. AIDS is not transmitted through air, food, or water, or by touching any object handled, touched, or breathed on by a person with an HIV/AIDS infection.
* 75-85% Transmission occurs through sexual contact (5-10% of them through a homosexual relationship)
* 5-10% due to contaminated syringes (primarily in injecting drug users)
* 3-5% through tainted blood transfusions
* 90% of infections occur in infants and children of mothers with HIV
* 25-35% of infants born to mother with HIV will become infected with HIV
* Prolonged Fatigue
* Shortness of breath and persistent cough
* Weight loss is strikingly
* Enlarged glands (in the neck, armpits, groin) for no apparent reason
* Bluish red patches on the skin (skin cancer)
* Often fever (over 38 ° C) accompanied by night sweats for no apparent reason
* Diarrhea more than one month for no apparent reason
