Is AIDS taking over the world?
A disease is an abnormality of an animal or plant, caused by a pathogenic organism.
Therefore, disease resistance is the ability to withstand the attack of these pathogens and remain virtually unaffected. The disease may be infectious (communicable), caused by invading organisms that live parasitically on or within the body. The disease causing organisms include viruses, some bacteria and certain other organisms that may be passed from person to person – e.g. Plasmodium that causes malaria. Other types of communicable disorders are fungal, bacterial and viral diseases. The alternative type of disease to the contagious sorts above, are non-communicable disorders, which are not infectious. These can be caused by unfavourable environmental conditions. Cancer, allergies, genetic diseases and mental disorders all fall into this category.
AIDS is a viral infection, caused by an RNA retrovirus. A virus consists of a strand of nucleic acid (in this case RNA), wrapped in a capsid (a protein coat). The AIDS virus has an external envelope, made of lipid and protein. This envelope is derived from the cell membrane of the host cell in which the virus replicated. The virus contains reverse transcriptase enzyme.
AIDS stands for Acquired Immune Deficiency Syndrome; meaning that one is able to catch it, it is a weakness in the body’s system that fights diseases, and is a group of health problems that makes up a disease. A virus called HIV (Human Immunodeficiency Virus) causes AIDS. If the body is effected, it will try to fight the infection. The immune system will produce antibodies, which are special molecules in the blood with the function to attack foreign bacteria or viruses. They attack antigens in a number of ways, by: making them clump together, neutralising the toxins released, reacting with the bacterial cells so as to ensure attachment to the phagocytes, and also damaging the cell wall using hydrogen peroxide.7
The HIV virus is passed from one person to another via blood-to-blood or sexual contact. In addition, infected pregnant women can pass HIV to their babies during pregnancy or delivery, as well as through breast-feeding. The virus is transmitted in body fluids: blood, semen, vaginal fluid, breast milk and other blood containing fluids have all been proven to carry spread the virus.
By killing or impairing cells of the immune system, HIV progressively destroys the body’s ability to fight infections and certain cancers.
It is a virus that gradually attacks the immune system, which is our body 's natural defence against illness. If a person becomes infected with HIV, they will find it harder to fight off infections and diseases. AIDS stands for acquired immune deficiency syndrome. AIDS is a syndrome caused by the HIV virus. It is when a person’s immune system is too weak to fight off infections, and develops when the HIV infection is very advanced.
Acquired Immunodeficiency Syndrome or AIDS is cause by Human Immunodeficiency Virus (HIV) of genus lentivirus which is one part of the retroviridae family. There are two types of HIV which had been identified, HIV-1 and HIV-2. Shape and structure of HIV is roughly spherical with diameter of 1/100000 of a millimeter. HIV had a viral envelope which coats the external surface of the virus.
Human immunodeficiency virus (HIV) is a retro virus that causes AIDS. HIV is a virus that can only be contracted between human to human. HIV weakens your immune system because this virus is destroying cells that fight diseases and infection in your body. A virus can only produce itself by taking over a cell in the body of its h...
IMMUNE DEFICIENCY? Catching the AIDS virus can be lethal because it affects the immune system, which is the system in the body that fights against diseases. A person with the AIDS virus has lower levels of CD4+ cells. These cells, commonly called "T-helper" cells are an essential part of the immune system. Normal people usually have between 500 to 1,500 CD4+ cells in a milliliter of blood.
According to the World Health Organization, HIV/AIDS is the leading infectious killer in the world with the death toll estimated around 36 million people (WHO, 2014). HIV stands for human immunodeficiency virus. HIV is very different from other communicable disease because the virus takes over cells in the body and weakens the immune system. It does that by destroying healthy, important cells that fight off disease and infection. The reason your immune system cannot fight this virus is still a question many scientists are seeking to answer, (AIDS, 2014). Scientists know that HIV is capable of being undetected in the cells of our bodies for long periods of time. The HIV virus invades our T cells, which are in charge of cellular immunity, and is able to duplicate itself in these cells and then destroy them. When too many T cells become destroyed the body is unable to fight off this virus, which leads to Acquired Immunodeficiency Syndrome or AIDS, (AIDS, 2014).
HIV affects the immune system, especially a type of T cells (CD4 cells). Over time, HIV destroys the overal...
HIV is the virus and AIDS is the condition. AIDS is a disease that is caused by HIV, however a person can have HIV without having AIDS. HIV is a virus that works against the immune system and some people with HIV will progress through the disease and develop AIDS.
Acquired Immune Deficiency Syndrome (AIDS), specific group of diseases or conditions that result from suppression of the immune system, related to infection with the human immunodeficiency virus (HIV). A person infected with HIV gradually loses immune function along with certain immune cells called CD4 T-lymphocytes or CD4 T-cells, causing the infected person to become vulnerable to pneumonia, fungus infections, and other common ailments. With the loss of immune function, a clinical syndrome (a group of various illnesses that together characterize a disease) develops over time and eventually results in death due to opportunistic infections (infections by organisms that do not normally cause disease except in people whose immune systems have been greatly weakened) or cancers.
HIV, also known as Human Immunodeficiency Virus, is a virus that attacks the body’s immune system. If left untreated, HIV reduces the number of CD4 cells in the body, which makes a person more likely to get infections or infection-related cancers. HIV can also lead to AIDS (acquired immunodeficiency syndrome), if it is not being treated (aids.gov). There is no effective cure for HIV, however with proper treatment and medical care, HIV can be controlled. In
AIDS was first discovered in the United States in 1981. Since then, this epidemic has affected approximately 40 million people worldwide. AIDS is a life threatening illness that is caused by the HIV infection. When the HIV virus enters the body it begins to destroy the immune system impairing its ability to fight off certain infections and diseases. About a month after being infected, a person develops a viral infection. The viral infection is similar to the flu and causes fever, fatigue, weight loss, and swollen glands. These symptoms usually subside, and a person may not develop AIDS for up to 10 years after being infected with HIV. During this time, the HIV virus continues to multiple and destroys cells of the immune system. A person is diagnosed with AIDS when the immune system is so deteriorated by HIV that it can no longer fight off certain infections and diseases known as "opportunistic infections." These infections cause a person to suffer from a variety of illnesses including weight loss, persistent diarrhea, coughing, nausea, swollen glands, and shortness of breath. The infections can last from several days to several months and are often difficult to treat. AIDS patients are also prone to develop certain cancers. These cancers include Kaposi's sarcoma, cervical cancer, and lymphomas. Although each of these cancers are treatable, AIDS patients suffer severe cases of these cancers because of their weakened immune system. It is often difficult to determine if a person will make it through a particular illness or not. In most cases, people do not die from AIDS but from complications from illnesses that define AIDS. When a person is diagnosed with having AIDS, their estimated survival time is 2-3 years.
HIV/AIDS does not affect any specific organ but the immune system as a whole. Once the virus weakens the immune system to a point where it no longer protects one against diseases, every organ can be affected by either an opportunistic infection or a tumour. A key specialized cell that is affected by HIV/AIDS is the CD4 cell or the t-cell. This cell helps humans protects themselves against very common but deadly diseases. The HIV virus attacks these cells and uses them to make more HIV cells. ...
The human immune system can't seem to get rid of it. Why the virus is incurable has been the top question of scientist whom for years, has been trying to find the solution to cure the virus. For long periods of time, HIV hides in the cells in your body and attacks the main part of the immune system. HIV takes over the cells that fight infections and diseases for your body, and uses them to reproduce itself. Over time, HIV can destroy so many of your CD4 cells that your body can't fight infections and diseases anymore. From there, HIV infection will lead to AIDS.
In 1981, a new fatal, infectious disease was diagnosed--AIDS (Acquired Immuno-Deficiency Syndrome). It began in major cities, such as New York, Los Angeles, Miami, and San Francisco. People, mostly homosexual men and intravenous drug users, were dying from very rare lung infections or from a cancer known as Kaposi’s sarcoma. They have not seen people getting these diseases in numerous years. Soon, it also affected hemophiliacs, blood recipients, prostitutes and their customers, and babies born from AIDS-infected women. AIDS was soon recognized as a worldwide health emergency, and as a fatal disease with no known cure, that quickly became an epidemic. When high-profile victims began to contract the virus, such as basketball star Magic Johnson, the feeling spread quickly that anyone, not just particular groups of people, could be at risk. AIDS impairs the human body’s immune system and leaves the victim susceptible to various infections. With new research, scientists think that the disease was first contracted through a certain type of green monkey in Africa, then somehow mutated into a virus that a human could get. AIDS is a complicated illness that may involve several phases. It is caused by a virus that can be passed from person to person. This virus is called HIV, or Human Immuno-deficiency Virus. In order for HIV to become full-blown AIDS, your T-cell count (number of a special type of white-blood cells that fight off diseases) has to drop below 200, or you have to get one of the symptoms of an AIDS-induced infection.
Acquired immune deficiency syndrome (AIDS) is a fatal physical condition that is caused by the human immunodeficiency virus (HIV). The virus damages the human body’s immune system, so that the body cannot protect itself from bacteria, viruses, and prions that cause diseases. With severely lowered defenses, AIDS patients die from common illnesses such as pneumonia, diarrhea, cold, and tuberculosis. The HIV virus does not directly attack its victim; the disease that patients suffer from after receiving the virus is what hurts and kills them.
Many people that are infected with HIV do not know. HIV symptoms don't show up until ten years. HIV is a sexual transmitted disease which attacks the lymphocytes of the immune system. Lymphocytes help defend the body from infections. As the HIV attacks the lymphocytes, the immune system will decrease in strength. When people have a weaker immune system, they will eventually get more infections that can be more harmful and deadly. There is no ultimate cure for HIV, but medicines, provided by doctors, can slow down the process. HIV later becomes AIDS, Acquired Immune Deficiency Syndrome.