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1 HIV (human immunodeficiency virus) infects cells of the immune system Infection results in the progressive deterioration of the immune system, breaking down the body's ability to fend off some infections and other diseases. AIDS (Acquired immune deficiency syndrome) refers to the most advanced stages of HIV infection, defined by the occurrence of any of more than 20 opportunistic infections or related cancers. 2 HIV can be transmitted in several ways HIV can be transmitted through: •unprotected sexual intercourse (vaginal or anal) or oral sex with an infected person; •transfusions of contaminated blood; •the sharing of contaminated needles, syringes or other sharp instruments; •the transmission between a mother and her baby during pregnancy, childbirth and breastfeeding. 3 There are several ways to prevent HIV transmission. Key ways to prevent HIV transmission: •practice safe sexual behaviours such as using condoms; •get tested and treated for sexually transmitted infections, inc...

HIV, the virus that causes AIDS, is one of the world's most serious health and development challenges: •According to the World Health Organization (WHO) Exit Disclaimer, there were approximately 36.9 million people worldwide living with HIV/AIDS at the end of 2014. Of these, 2.6 million were children (<15 years old). •According to WHO, Exit Disclaimer an estimated 2.0 million individuals worldwide became newly infected with HIV in 2014.  This includes over 220,000 children (<15 years). Most of these children live in sub-Saharan Africa and were infected by their HIV-positive mothers during pregnancy, childbirth or breastfeeding. •A UNAIDS report Exit Disclaimer shows that of the 36.9 million people living with HIV globally, 17.1 do not know they have the virus and need to be reached with HIV testing services, and around 22 million do not have access to HIV treatment, including 1.8 million children. •The vast majority of people living with HIV are in low- and middle-income coun...

English is an international language, spoken in many countries both as a native and as a second or foreign language. It is taught in the schools in almost every country on this earth. It is a living and vibrant language spoken by over 300 million people as their native language. Millions more speak it as an additional language. English is spoken habitually in the United States, the British Isles, Ireland, Canada, Australia, New Zealand, the Republic of South Africa, Liberia, and many territories under the United Kingdom and the United States of America. It is estimated that 300 million people speak English as a second language, and an additional 100 million people use it fluently as a foreign language. As a rough estimate, 1000 million or one billion people around the world have some knowledge of English, either as a native language, as a second language, or as a foreign language. English is the associate official language of India which has over 1000 million (over billion) people. Pak...