The World Health Organization reports that in 2008, there were 164,000 measles deaths globally, more that 95 percent of which were in low-income countries with weak health infrastructures. This rate equates to nearly 450 a day or 18 per hour. In recent years, targeted vaccination campaigns have greatly reduced the number of measles deaths each year, though in developing nations with weak health infrastructures complications or deaths related to measles infection are still not uncommon. By increasing awareness about the importance of vaccination and making vaccines available in regions where they are needed, the virus that causes measles could be eradicated.
Measles, also called rubeola, is a common and preventable childhood disease, also sometimes seen in individuals with compromised immune systems. Most frequently, infection is marked by a fever lasting a couple of days, followed by a cough, runny nose, and conjunctivitis. Soon after, patients exhibit a rash on the face and upper neck, spreading down the back and trunk to the arms and legs. Reports indicate that 30 percent of people infected with measles will experience complications, ranging from ear infections to pneumonia. Further, one in every 1,000 people will develop inflammation of the brain. If left untreated, the complications associated with measles infection can be life threatening. In regions without widespread access to medical care, an estimated five percent of children die of measles-related causes.
According to William Schaffner, an infectious disease expert at Vanderbilt University School of Medicine, the measles virus infects more than 80 percent of unvaccinated people exposed to it. Though the transmission of endemic measles was declared eliminated in the U.S. in 2000, the disease remains common in other regions and can be imported by travelers. Reports from the Centers for Disease Control and Prevention (CDC) indicate that during 2008, nearly 90 percent of measles cases in the U.S. were either acquired abroad or linked to imported cases. While a safe and cost-effective vaccine is available, more than 20 million people are affected by measles each year and the majority live in developing nations and/or countries with low per capita incomes and weak health infrastructures.
Though measles outbreaks continue to be problematic in some developing regions, the World Health Organization reports that between 2000 and 2007, 576 million children were vaccinated against measles, resulting in a 74 percent decrease in measles-related deaths worldwide. By increasing awareness about the importance of vaccinations and ensuring that vaccines for measles are available, rates of infection, complications due to infection, and death could be even further reduced.
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Monday, May 23, 2011
On Measles Worldwide
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Monday, May 9, 2011
On Stroke Worldwide
Stroke, sometimes called a “brain attack” or cerebrovascular disease, is the second leading cause of death worldwide and the third in the United States, killing approximately 137,000 people each year. Though many individuals recover from strokes, at least two-thirds of survivors experience some type of disability. A reported 80 percent of strokes are preventable, and by increasing awareness about stroke prevention and treatment, it may be possible to improve individuals’ recovery.
Individuals with high blood pressure or high cholesterol, those over 55 years of age or who have a family history of stroke, and those who smoke or use alcohol are at an increased risk of having a stroke. Though stroke predominantly occurs in middle-aged and older individuals, in recent years an increase in the number of young people affected by stroke has been seen. According to experts, this may be due in part to an increase in the incidence of obesity worldwide.
A stroke occurs when a blood clot blocks an artery or when a blood vessel breaks, interrupting blood flow in an area of the brain. Approximately 87 percent of strokes are Ischemic, meaning that they are caused by a gradual build-up of plaque and other fatty deposits or blood clots which block arteries so that blood cannot be delivered to the heart. In the case of Ischemic stroke, clot-busting medications must be administered as quickly as possible to improve the patient’s chances of survival and minimize the potential of complications. In contrast, Hemorrhagic strokes, which account for 13 percent of all strokes but more than 30 percent of stroke-related death, occur when blood vessels in the brain burst, leaking blood into the brain. For individuals experiencing Hemorrhagic stroke, emergency treatment focuses on controlling bleeding and may involve surgery to repair the broken blood vessel. In addition to the medications commonly used for stroke treatment, new research suggests that a drug derived from turmeric, CNB-001, may be able to help the body repair some of the damaged caused in the immediate aftermath of a stroke.
By depriving brain cells of oxygenated blood, strokes kill off brain cells and trigger a chain reaction that can widen the damaged area and increase the level of disability suffered by the patient. Because the risk of brain damage increases the longer a stroke goes untreated, experts suggest using the F.A.S.T. test to quickly determine if an individual has had a stroke. The procedure for the F.A.S.T. test is as follows:
- Face: Ask the person to smile. Does one side of the face droop?
- Arms: Ask the person to raise both arms. Does one arm drift downward?
- Speech: Ask the person to repeat a simple sentence. Is the speech slurred?
- Time: If any signs are observed, call 9-1-1 immediately or seek medical attention.
By increasing awareness about the risk factors that contribute to stroke and encouraging individuals to make healthier lifestyle choices, it may be possible to lessen the chances of its occurrence. In addition, providing information about how to determine if an individual is having a stroke can help ensure that those who do will receive life-saving treatment more quickly.
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