VITAMIN A DEFICIENCY 12:02:00 PM

Condition: Vitamin A deficiency (VAD) is an issue in over half of all countries, especially countries in Southeast Asia and Africa. Pregnant women and children are primarily affected. The condition causes blindness and in many instances, death. Other results of Vitamin A deficiency include itchy dry skin, dry hair and a decreased resistance to infections.
Causes: Obviously, a lack of Vitamin A in one's diet is the primary cause of Vitamin A deficiency. The micronutrient is found in high quantities in foods that come from animals (liver, eggs, dairy products) and in many fresh fruits and vegetables. In many parts of the world, due to poverty or environmental issues, people have limited access to food at all, much less Vitamin A rich foods.
Effects: One of the tell-tale signs of Vitamin A deficiency is night blindness. This is because Vitamin A aides in the production of rhodopsin, an eye pigment responsible for seeing in low light
situations. If left untreated, Vitamin A deficiency can progress to complete blindness. In addition, in both children and pregnant women, Vitamin A deficiency increases susceptibility to infections and the body's ability to fight them. Therefore, people affected by this condition have very high mortality rates. In fact, it is estimated that up to 500,000 children go blind each year due to Vitamin A deficiency, and over half of those children die within a year of losing their sight.
Treatment: In order to be effective, there have to be both long and short term treatments for Vitamin A deficiency. First, for people already affected, Vitamin A supplements are necessary twice per year. Each dose costs about $0.02. Next, food fortification (adding Vitamin A to certain foods) has proved very effective. Finally, promoting dietary diversification is important. Encouraging people in rural areas to grow their own Vitamin A rich food is a great way to prevent Vitamin A deficiency in the long run. Many global organizations have
launched efforts against the condition and it is hoped to be eliminated by 2010.
Recent News about Vitamin A Deficiency:
Canadian Investments Lead to World VAD Decline
Helen Keller International Recieves Award for VAD 'Vision'

If YOU want to do something about Vitamin A Deficiency, YOU can support these organizations:
Helen Keller International
Vitamin Angels
UNICEF
Global Alliance for Improved Nutrition (GAIN)

GUINEA WORM 6:05:00 PM

Condition: Guinea worm, also known as Dracunculiasis, is a crippling condition caused by a water-borne parasite. Between 1986 and 2008, the prevalence of the disease dropped from 3.5 million to 5,000. However, it continues to be endemic in 6 African countries. Guinea worm is one of the oldest recorded diseases, and it has been found in calcified Egyptian mummies.
Causes: The primary cause of guinea worm is a lack of clean water. Guinea worm larvae are present in contaminated water sources, and are eaten by a water flea. When a person drinks the water, they also ingest the flea and the larvae. Once inside the stomach, the flea is consumed by stomach acid, but the larvae remains and migrates throughout the body tissues. After approximately one year, the guinea worm is fully mature, and it emerges through a painful blister in one of the lower extremities. People often submerge the affected extremity in a water source to relieve the pain, and when they do so, the mature worm releases thousands of larvae into the water source, thus continuing the cycle.
Effects: As stated before, when the guinea worm begins to emerge from the skin, it is extremely painful for the victim. They often experience fever and intense burning and itching. Due to the pain, people are unable to work or attend school for up to three months. In agricultural areas, this means food shortages, lower earnings, and detrimental effects on local economies.
Treatment: Once a person is infected with guinea worm, treatment is gruesome. As the worm, which is several centimeters long and has the circumference of a spaghetti noodle, emerges from the body, a health care professional must pull it a few millimeters each day until it is freed from the body. This painful process can take several weeks, during which time victims are often unable to walk. Obviously, prevention is key, and behavioral changes are crucial. Prevention
efforts include improved water supply, the use of water filters, and community education. There are numerous international campaigns to prevent guinea worm, and it is hoped to be completely eradicated in the very near future.
Recent News about Guinea Worm:
Head of State Says Nigeria Has Conquered Guinea Worm
Ghana On Course to Eradicate Guinea Worm
End in Sight for Guinea Worm

If YOU want to do something about Guinea Worm, YOU can support these organizations:
The Carter Center
UNICEF (United Nations Children’s Fund)
Bill and Melinda Gates Foundation
Living Water International

DENGUE FEVER 10:03:00 PM

Condition: Dengue fever, an infection that causes flu-like symptoms in its victims, is spread by the bite of the Aedes mosquito. There are an estimated 50 million infections each year. It is most
prevalent in sub-tropical regions, especially in South-east Asia and the Western Pacific. Dengue haemorrhagic fever is a more dangerous, often fatal form of dengue fever. In some Asian countries, dengue haemorrhagic fever is the leading cause of serious illness and death
in children.
Causes: Dengue fever is spread by the bite of the Aedes mosquito. The mosquito becomes infected with the virus by biting an infected human. Once infected, the mosquito is capable of transmitting the virus to humans for the rest of its life. It may also pass the virus down to it's offspring. The virus cannot be spread form human to human.
Effects: Dengue fever causes flu-like symptoms in its victims. High fever, headaches, pain behind the eyes, muscle and joint pains, stomach pains, vomiting and rash are common. Symptoms usually subside within one week. However, symptoms of dengue haemorrhagic fever are more severe and can lead to liver enlargement and circulatory failure. Without treatment, victims can die within 24 hours.
Treatment: Since dengue fever is a virus, there is no specific treatment. No drug can cure it, but symptoms can be managed. In the case of dengue haemorrhagic fever, hospitalization is imperative so that doctors may maintain the patient's circulating fluid volume. Since treatment of the virus is so difficult, prevention is the most useful weapon. People in endemic regions can use preventative measures such as using mosquito nets and avoiding standing water (mosquito breeding ground). In addition, chemical vector control methods have proved effective.
Recent News about Dengue Fever:
Experts Seek Ways to Fight Dengue Fever in Asia
Scientific Global Symposium on Dengue Fever Held in Philippines
Dengue Fever Cases Rise to 24,857 in Sri Lanka
First Human Trials for Recombinant Dengue Fever Vaccine

If YOU want to do something about Dengue Fever, YOU can support these organizations:
International Vaccine Institute (Pediatric Dengue Vaccine Initiative)