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In some states, especially those in the south, west central and east-this proportion is even lower: three of 10 children receiving one dose and two out of 10 receive a full course of immunization.

Only in two states of the country 85 percent of children had received full immunity program.

“One reason for this low rate of vaccination against hepatitis A in some states is the background of his recommendation,” said Dr. Christina Dorell, lead author of the study, published in the journal Pediatrics, and researcher at the CDC.

In 1999, the Advisory Committee on Immunization Practices of the CDC recommended the vaccine to children in 11 states in the western United States, the area with the highest rate of infection. In six other states, the committee advised “consider” its use.

In 2006, routine vaccination was recommended for 33 states, but only for children 1 year. In adolescents, it should only “consider” its use.

Infection with hepatitis A causes liver inflammation, can cause fatigue, poor appetite, nausea and jaundice. The CDC estimates that each year there are about 21,000 new cases.

The team interviewed more than 20,000 parents in the country and reviewed the immunization records of their children’s pediatricians. Children were born between 1991 and 1997.

Immunization rates were highest in the first 11 states to which the commission of the CDC had recommended routine vaccination: 60 percent of children had completed the two-dose schedule when they were between 13 and 17 . In Alaska and Oklahoma, that percentage was 85 percent.

In these states, African Americans, Hispanics, American Indians and Alaska Native children were more likely than whites to be immunized

Dorell said these groups were originally selected to receive the vaccine against hepatitis A because it concentrated the highest rates of infection.

“The great efforts in these communities by providing more coverage. So it would seem that these groups, the most risky, are the most are being vaccinated,” said Dorell told Reuters Health.

In the six states where the recommendation to consider the use of the vaccine is effective since 1999, 39 percent of teens received full immunization.

And in the 33 states with the same recommendation for adolescents since 2006, only 16 percent of this age group are vaccinated with two doses.

South Carolina and Mississippi were the states with the lowest rates of adolescent immunization.

The vaccine costs between $ 14 and $ 30 per dose. It is unknown how many adolescents should be vaccinated for most is protected by what is known as “herd effect”.

Most infections with hepatitis A occurs in young children.

Previous studies have shown that infections decrease in other children and adults as vaccination rates against hepatitis A increase in boys, Dorell said.

Between 1995 and 2008, there was a 92 percent decrease in rates of hepatitis A from the vaccine.

If all children were vaccinated one year, “could sustain the progress made in reducing infection rates in the U.S. in the last two decades.”

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Although the research does not identify the compounds in tea responsible for this effect, the authors note that previous studies had indicated the cardiac benefits of flavonoids found in many plants, including tea.

“The message is that we all start to consume much tea,” said Jonathan Hodgson, author of the study and researcher at the University of Western Australia, but the pressure reduction is an advantage.

The study, published in Archives of Internal Medicine, the authors divided into two groups at 95 Australians with normal pressure. One group drank black tea and the other a drink with the same taste and caffeine content.

Before the study, participants daytime blood pressure was 121/72 mm Hg.

The values ​​of up to 120/80 mm Hg are normal, but when they exceed 140/90 indicate hypertension. The range between the two values ​​is considered “prehypertension”.

Each group ingested the assigned drink three times a day for six months.

At the end of the experiment, the systolic (maximum) of tea drinkers was 2 mm Hg lower. Diastolic pressure also fell about 2 mm Hg.

Any decrease in pressure is good, but 2 mm Hg are not significant enough to rid the area of ​​risk to a person with high blood pressure.

“They are small or insignificant changes when compared with the effect of an antihypertensive,” said Dr. Joseph Vita, Faculty of Medicine, Boston University, who did not participate in the study.

However, the systolic pressure in the control group increased by 1 mm Hg, while diastolic pressure did about 0.5 mm Hg.

To rule out the influence of other foods, all participants reduced their consumption of flavonoid-rich foods such as apples, grapes, chocolate and wine for four weeks before and during the study.

Hodgson noted that such a dietary change could have caused the increased pressure in the control group.

The study was conducted with public subsidies and the area of ​​Research and Development Unilever, which markets the Lipton tea brand.

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Pfizer said Tuesday that birth control pills did not pose a threat to the health of women but urged consumers affected by the withdrawal that began “to use a method of non-hormonal contraception immediately.”

The drugmaker said the problem affects 14 lots and 14 lots Lo/Ovral-28 pills pills Norgestrel and Ethinyl Estradiol.

The company said an investigation had found that some of the blisters of oral contraceptives may contain an inaccurate number of active ingredients or inactive tablets.

The tablets were manufactured by Pfizer Pharmaceuticals and marketed by Akrimax and sent to stores, clinics and pharmacies throughout the United States, the company said.

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NEW YORK (Reuters Health) – In a new study, American Indians who ate canned processed meat often called “spam”, a common product in reserves subsidized by the Government of the United States had twice the risk of developing diabetes than those who ate the least amount.

“This suggests that the reduction in processed meats should be a priority for food assistance programs that use mostly Native Americans to obtain these products at a discount,” said Dr. Dariush Mozaffarian, a professor at the School of Public Health at Harvard and did not participate in the study.

Native Americans are at high risk of developing diabetes. At 55 years, nearly half have the condition.

The authors interviewed 2,000 indigenous people of Arizona, Oklahoma and North Dakota and South. No participant (35 years was the average age) had diabetes at baseline. At five years, 243 had developed the disease.

85 percent of the 500 participants who consumed more canned processed meat developed diabetes, compared with just 44 of the 500 participants, less “spam” ate.

Although Spam is the brand of a product with pork, when written in lower case describes all kinds of canned processed meat, explained the study’s lead author, Amanda Fretts, Faculty of Medicine, University of Washington.

The canned meat is preserved in the Indian reservations, Fretts team writes in the American Journal of Clinical Nutrition. ”Many of the studied communities living in rural areas with little access to food retail locations and want to consume products that can last on the shelves,” Fretts said told Reuters Health.

In addition, the food assistance program of the Department of Agriculture United States gives them free canned meat.

The team also noted that raw meat was not as related to diabetes. Participants were equally likely to develop the disease no matter how many burgers or cuts of pork or beef they consumed.

This supports previous results Mozaffarian team, which had found that eating processed meat was associated with a 19 percent increased risk of developing diabetes, while the raw meat had no effect.

“The biggest difference between processed meats and unprocessed is the sodium content,” which is higher in processed meats. ”We know that sodium alters the pressure and, perhaps, have other effects that we should study better,” said Mozaffarian.

Fretts team observed that participants who consumed more processed meat used to be overweight and a larger waist circumference, which increases the possibility that processed meats promote obesity, a factor that increases the risk of diabetes.

Through an emailed statement to Reuters Health, AMI, which represents the industry, said that “processed meats are safe and nutritious part of a balanced diet.”

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A U.S. team found that people with signs of thyroid disease were two to three times more likely than a control group to have performed an imaging study with tincture of iodine.

This does not prove that the dye is causing the problem, but experts agree it could be because high doses of iodine unbalance the thyroid function.

The dose of dye given during these tests exceeds several hundred times the recommended daily intake of 150 mcg.

“It’s a dose very, very high, actually exceeds the amount to which patients would be exposed,” said study co-author, Dr. Steven Brunelli’s Hospital Brigham and Women in Boston.

In the world each year are given about 80 million doses of iodine. This chemical affects the kidneys, but until now there was only anecdotal evidence that could also damage the thyroid. Therefore, doctors often fail to mention the possible adverse effects on the gland.

The results of Brunelli’s team published in Archives of Internal Medicine arising from 400 patients treated at the Hospital of Brigham and Women’s Hospital and Massachusetts General, and later developed hypothyroidism or hyperthyroidism.

The researchers compared this group with more than 1,400 other patients with normal thyroid function (control group).

Blood samples revealed that people with hyperthyroidism were twice as likely than the control group have performed a computed tomography (CT) or cardiac catheterization with iodine.

When considering patients with signs of thyroid disease, the relationship became even stronger and included hypothyroidism.

If this represents a cause and effect, means there would be one extra case of hyperthyroidism in 33 patients exposed to the dye and one per 36 hypothyroid patients.

In the study, hypothyroidism, but hyperthyroidism is corrected over time.

For Brunelli, the results should make doctors more cautious with the use of diagnostic imaging with dyes, but recommended that patients do not reject these studies when necessary to prevent thyroid disorders.

“All of these thyroid disorders can be treated,” he said.

Dr. Jeffrey A. Kline, who researches the effects of iodine, praised the study’s release, but noted some limitations.

“It tells us that the blood samples of some patients include abnormal values ​​after (diagnostic imaging) but do not know exactly what he meant for patients,” said Kline, who directs studies emergentología Carolinas Medical Center in Charlotte, North Carolina.

Kline estimated that one in every 1,000 patients exposed to the dye develops a thyroid disorder so upset to see a doctor. So, he said, kidney damage from the dye occurs in one in 10 patients is a much bigger problem.

Moreover, imaging studies also expose patients to radiation doses, which would raise slightly the risk of developing cancer.

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Still, this remains an excuse when some doctors recommend that expensive diagnostic examination that involves the investigation of plaque in the carotid arteries. Experts say the study lacks a proven value in people without symptoms of heart disease.

“When smokers have access to effective smoking cessation program, the investigation of plaque in the carotid arteries does not add anything,” said lead author Dr. Nicolas Rodondi.

Previous studies have suggested that when patients look images of the accumulation of cholesterol, or plaque in their arteries, modify their lifestyles. But, at least in smokers, the new study demolishes these arguments.

“It shows that this strategy will not succeed in motivating smokers to stop smoking,” said Dr. Patrick O’Malley, of the Uniformed Services University in Bethesda, Maryland, and author of an editorial accompanying the study.

During the investigation of plaque in the carotid arteries using ultrasound to obtain images of the arteries that supply blood to the brain. The procedure is increasingly popular in the U.S. and Europe, but it is unknown whether it helps patients.

“There is no proven benefit. It remains a promising test, but that is overutilized in clinical practice,” said O’Malley told Reuters Health.

Although some organizations recommend it, the panel of experts known as the United States Preventive Services Task Force does not recommend use in people without symptoms of heart disease.

The new study, published in Archives of Internal Medicine, comes from more than 500 smokers between 40 and 70 who wanted to quit and had no cardiac symptoms.

All patients received six sessions of counseling in a year, plus a phone call, nicotine patches and brochures about smoking cessation. At random, half underwent an investigation of the carotids. Most had plaque.

Although smoking encourages their occurrence, which is a risk factor for heart attack and stroke, ultrasound images had no effect.

At one year, one quarter of the controlled group with the probe had stopped smoking for at least a week, compared with 22 percent of the group that underwent the investigation. The small difference could be attributed to chance.

“Smokers are a distinct breed. They usually have a different psychological profile. They are more resilient,” said O’Malley.

Said that the investigation Rodondi carotid costs $ 400 in Switzerland, as well as six sessions to stop smoking with a doctor. He added that the test is not worth the money, as opposed to a smoking cessation program.

“When smokers try to quit on their own, they succeed only by 5 per cent of cases a year,” he concluded.

Educational Site

Checkout Ultrasound Technician Schools if you’re interested in learning how this technology is used for more than just pregnancies.

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Lead, a metal that was once common in gasoline and paint for homes, can permanently damage the developing brain.

On Wednesday, the Advisory Committee on the Prevention of Childhood Lead Poisoning voted to recommend that the federal government changed the standard for lead poisoning of 10 micrograms of lead per deciliter of blood at 5 micrograms. This was the first time in over two decades that the panel recommended reducing levels.

“We are happy to finally have a breakthrough,” said Ruth Ann Norton, executive director of the Coalition to End Childhood Poisoning Lead (Coalition to End Childhood Lead Poisoning). “It must be long. Science has been available.”

Existing guidelines are given to parents and physicians a false sense of security that children are safe from danger, said Norton.

If the Centers for Disease Control and Prevention (CDC) of USA. UU. adopt the recommendation of the panel, up to a million children could be diagnosed with lead poisoning, compared with the 250,000 current, said Dr. John Rosen, a professor of pediatrics and director of the environmental sciences division at Children’s Hospital Medical Center Montefiore in the city of New York.

“It was time that the CDC changed its definition of childhood lead poisoning from 10 to 5 [micrograms per deciliter of blood],” said Rosen. “10 was established twenty years ago, and there are at least twenty articles that demonstrate unequivocally that there are adverse effects of lead on IQ and intellectual development and cognitive blood levels of 5 to 9″.

Although lead-based paint was banned from housing in 1978, this type of deteriorating paint in homes is still the main source of lead poisoning among children today, Rosen lamented.

Lead is also found in some art supplies and toys, old painted toys, pipes and faucets of homes, certain equipment from hobbies and miniature lead figures. The metal can enter the bodies of the children if they touch these items and put their fingers in their mouth or swallow items.

Damage from lead exposure are irreversible. “It affects memory, learning to sit, listen and learn in school, abstract thinking, planning, organization, communication skills and fine motor skills,” said Rosen.

Dr. Vikas Kapil, medical director of the National Center for Environmental Health at the CDC, said it will be several months before the CDC decided to accept or reject the committee’s recommendation.

“We have studied the issue of lead levels in children for some time,” said Kapil. In 2005, the CDC asked the committee to determine if a change was necessary, but at that time there was insufficient evidence to recommend a change, he said.

“We ask the committee to make a new observation at the end of 2010 and the recent recommendation is the result,” he added. “There is a growing body of evidence that blood lead levels below 10 are associated with adverse health effects in children. We do not want doctors consider 10 as a safe level.”

National Institutes of Health, USA. UU. recently supported similar recommendations on blood lead levels, said Kapil.

If the CDC adopt it, the new standard would require public health departments and housing across the country to improve code enforcement and focus on the only cure for lead poisoning, which is the primary, said Norton. “There is no medicine or treatment that will reverse the impact of lead poisoning,” he added.

The problem of lead paint has persisted for decades, these experts lamented.

“You will not be final until a federal order to completely eliminate lead from all housing before the 60′s,” said Rosen. He emphasized that only a licensed contractor to remove lead from housing as required by law to do the job.

The current strategy to protect children from lead paint is ineffective, said Rosen. “Currently, the method is to paint over lead based paint and modify the home so that no paint chips or obvious lead paint dust in housing,” he said. “I call it the Band-Aid approach.”

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After reviewing a database of health insurance, researchers found that people who had developed sudden deafness were more likely to have a previous diagnosis of sleep apnea than those without the loss of hearing (control group).

The absolute difference was small: 1.7 percent of those who had lost his hearing had sleep apnea, compared with 1.2 percent in the control group.

“With the sudden loss of hearing, investigate whether the person also has apnea, as it is easy to diagnose and treat,” said Dr. Seva Polotsky, Faculty of Medicine, Johns Hopkins University in Baltimore, who not involved in the study.

“Obviously, the study does not tell us whether treating apnea reduce deafness” or the possibility of having hearing problems, he said. For now, he said, “there are more questions than answers.”

It is possible, he explained that “sleep apnea, which increases the buildup of plaque in blood vessels, alters the vessels of the brain areas that control hearing or auditory nerves that supply.”

Polotsky considered that further studies are needed to explain this relationship.

National Institutes of Health, United States estimates that each year in the country, about 4,000 new cases diagnosed in sudden deafness and there are many possible causes, including infections and head injuries.

Typically, hearing loss affects only one ear. Most patients recover within weeks of hearing, sometimes with the help of steroids. But sometimes, deafness is more serious.

By analyzing the records of 1 million Taiwanese team Jiuan Sheu Jau, hospital of Taipei Medical University discovered that nearly 3,200 beneficiaries sudden deafness had been diagnosed between 2000 and 2008.

For each, the team chose five others of the same age and sex, but no hearing loss, as a control group.

Of a total of 19,000 people, 240 had sleep apnea diagnosed by hearing loss.

After considering factors associated with sleep disorders and hearing loss, such as obesity and coronary heart disease, sudden deafness men were 48 percent more likely to have previously diagnosed sleep apnea than men in the control group.

In women, the relationship was not as evident as accurate in the Archives of Otolaryngology-Head & Neck Surgery.

The study does not prove that sleep apnea causes sudden deafness. The team could not determine whether the participants smoked or drank, which also influences the risk for both disorders.

The team’s hypothesis is that inflammation and vascular changes associated with sleep apnea may increase the risk of the deafness.

Polotsky said most of the complications associated with sleep apnea, such as hypertension and diabetes, would occur by frequent fluctuations of oxygen during the night. And sudden deafness could be in that category, as he said. But the study, said, “does not show it. It only opens a potentially new area of ​​research.”

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These other diseases include attention deficit disorder with hyperactivity (ADHD) or learning problems, and can complicate diagnosis or delay the improvements in children diagnosed and treated early.

“(The study) points out that these children often have multiple disabilities, not just autism,” said Johnny Matson, an expert on autism spectrum disorders and intellectual upheavals of the Louisiana State University in Baton Rouge, who was not involved in the study.

The team of Dr. Andrew Zimmerman, Children’s Hospital Massachusetts General in Lexington, found that the typical diseases that accompany the diagnosis of autism spectrum disorders vary with age of each child.

Learning disorders were more common in younger children, while anxiety, speech problems and seizures affect more elementary students and teens.

In the journal Pediatrics, the team writes that previous studies had shown that some children with autism spectrum disorder fail to qualify diagnoses and are no longer considered autistic.

In the study, this happened with one third of children with an initial diagnosis. It is debated whether this is due to an error at first diagnosis or brain or behavioral changes of patients.

Autism spectrum disorders include autism, Asperger syndrome and “pervasive developmental disorder not otherwise specified” or PDD-SOE.

The number of children diagnosed with these disorders has grown in recent years. According to the Centers for Disease Control and Disease Prevention (CDC for its acronym in English), one of every 100 American children has an autism spectrum disorder.

It is expected that the next revision of the Diagnostic Manual of Mental Disorders delimit the definition of autism and associated disorders, reducing the number of children and adults who meet the diagnostic requirements.

The new study included data from a telephone survey conducted in 2007 and 2008 to 92,000 parents of children under 17 years of United States.

Parents were asked whether a doctor had ever told your child had an autistic spectrum disorder, if your child was present or suffered other mental and behavioral problems.

In total, 1,366 parents said their son had or had an autistic spectrum disorder. Of that group, 453 no longer met the diagnostic criteria.

Young children with autism often still considered to have more learning problems or developmental delay than children who had “lost” the diagnosis.

Children of school age, however, had more anxiety disorders, whereas adolescents had higher rates of language impairments or mild seizures and epilepsy.

In a study by Dr. Susan Levy, “children with more concurrent diagnoses of autism were diagnosed later in life” when clinical criteria are defined and stable, explained the author, a researcher at Children’s Hospital of Philadelphia.

He also commented that “children with more concurrent diagnoses were more problems, delaying his recovery.” And this difficult to treat.

Zimmerman said he recognized early signs of autism and initiating treatment would increase the possibility of real and lasting improvement.

“Early treatment is essential and there is reason to believe that children can improve.’re Very optimistic,” he said.

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