HIV, or human immunodeficiency virus, is the virus which can lead to AIDS. There are many ways to contract this virus, with the most common being through unprotected sex and the sharing of needles.

People who are infected with HIV may initially not realize there is anything wrong with them as they do not show any symptoms. Nevertheless, some people tend to develop some flu like symptoms which can last for several weeks. Some of these symptoms may include fever, tiredness, loss of appetite, aching muscles and joints, rashes and swollen lymph glands.

HIV Virus Structure

When the virus enters the body, it takes residence in white blood cells that are known as CD4 lymphocytes. The virus takes total control of these cells and starts producing billions of replicas of itself every day.

Once infection of HIV occurs, the body starts to attack the virus and because of this the virus cannot make any copies of itself. This in turn leads to a false sense of wellness as although one would still have HIV, the infected person will begin to look and feel better. Unfortunately, during this period the virus is still attacking the lymph nodes, which are the body’s immune system center.

During the course of ten to fifteen years, the HIV manages to kill so many of the CD4 cells that the body no longer has the ability to fight off infections. Once the CD4 cell count drops below a certain number (200 or lower per mL – the average is 600 to 1000) the sufferer is classed as having AIDS (acquired immunodeficiency syndrome). Once a person has AIDS, the risk of infection form almost anything can cause fatal complications.

HIV Virus Cycle

Down syndrome is a genetic disorder otherwise known as trisomy and it is where an individual has inherited an additional or extra copy of a particular chromosome. In the case of Down’s syndrome, the affected individuals have three copies rather than two of chromosome 21. The consequence of this additional copy is that it changes the balance of the body resulting in characteristic intellectual and physical features.

Down Syndrome

There are three kinds of Down’s syndrome: regular trisomy 21 which is where all the cells in the body have an extra chromosome 21 and is the most common type of the condition with nearly 94% affected with Down’s having it; translocation, which is where extra chromosome 21 material attaches to another chromosome, and four percent have this type; and mosaic, which is where only some of the cells have additional chromosome 21. This usually has milder features than the other two types and only two percent of affected individuals have mosaic.

Down syndrome sufferers look different to normal people and usually have a flat type of facial profile with eyes slanting upwards. Smaller ears, protruding tongue and a flat back of the head are other features. Individuals affected tend to be shorter than normal, have poor muscle tone and have broad, short hands. Half the affected individuals have a heart defect, which can be treated in some, but not others. Some have problems with their gut, making it difficult to eat while increasing the risk of constipation and thyroid problems.

There is no cure for Down syndrome but there are treatments available for the accompanying symptoms as well as support for the learning difficulties.

Vaginitis is the name given to an infection of the vagina.  Symptoms of vaginitis include a sore itching vagina with possible abnormal discharge.  There are various types of vaginitis and each type has its own cause and symptoms.  These different types are yeast infections, bacterial vaginosis, non-infectious vaginitis, and trichomoniasis.

Yeast or Candida infections are the most common type of vaginitis and are caused by an excess of the fungus Candida growing in the vagina.  Symptoms of yeast infections include a thick white discharge which causes the vagina to become itchy and red.

Vaginitis

Bacterial vaginosis is a frequent infection which affects women of reproductive age and is caused by bacteria in the vagina.  Symptoms of bacterial vaginosis can include a thin smelly vaginal discharge although some women find they have no symptoms at all and only become aware of the infection during a visit to the gynecologist.

Non-infectious vaginitis can be caused by a reaction to products used such as soaps, fabric softeners, douches, vaginal sprays or spermicidal products.  It can cause the vagina to become itchy or burn and is accompanied by a vaginal discharge.

Trichomoniasis is an infection of the vagina which is caused by a single cell parasite.  This form of vaginitis is a sexually transmitted disease and will cause soreness, itching, and burning of the vagina.  It can also cause a burning feeling when urinating.

Each type of vaginitis has its own treatment.  An anti-yeast infection is used to treat yeast infection.  An antibiotic is used to treat bacterial vaginosis as there is no remedy which can be purchased over the counter.  In order to treat non-infectious vaginitis it is necessary to cease using the product which caused the reaction and a cream can be used to relieve symptoms. Trichomoniasis is treated with an antibiotic but it is important to avoid any sexual contact until it has been treated.