Common causes of gas and bloating include: 1  Swallowed air. 2  Foods and beverages. 3  Lactose intolerance. 4  Constipation. 5  Medicines or nutritional supplements. 6  A medical condition, such as a bowel obstruction or Crohn's disease. 7  Changes in hormone levels.
HIV and AIDS social issues. In many regions, social issues increase the risk of HIV infection making it difficult to tackle the global HIV epidemic effectively. Certain groups of people are more affected by HIV than others. Sometimes this is because they engage in high-risk behaviours, while others experience stigma and discrimination that stops them from approaching HIV services.
HIV/AIDS. AIDS is a collection of symptoms known as acquired immunodeficiency syndrome. It is caused by infection with the human immunodeficiency virus (HIV).PubMed Health Glossary. (Source: NIH-National Human Genome Research Institute).IDS is caused by the human immunodeficiency virus, or HIV. By killing or damaging cells of the body's immune system, HIV progressively destroys the body's ability to fight infections and certain cancers.