AIDS deaths worldwide drop as access to drugs improves

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Japan Nuke Disaster Will Kill Up to 1,300 People Worldwide, Study Estimates

HealthDay – 2 hrs 1 min ago TUESDAY, July 17 (HealthDay News) -- Radiation from last year's disaster at Japan's Fukushima Daiichi nuclear plant may eventually cause up to 1,300 deaths and 2,500 cases of cancer worldwide, according to U.S. researchers who calculated the global health effects of the incident.

Most of those deaths and cancer cases would occur in Japan, the Stanford University team said.

Although their estimates have a large range of uncertainty, the findings challenge previous claims that the radioactivity released by the damaged plant was not likely to cause any severe health effects.

The researchers' calculations are in addition to the approximately 600 deaths caused by the evacuation of the area around the nuclear plant after the March 2011 earthquake, tsunami and meltdown.

The study, published July 17 in the journal Energy and Environmental Science, is the first detailed analysis of how the disaster could affect health around the world.

For the study, the investigators used a global atmospheric model to predict the transport of radioactive material released by the plant and used another model to estimate the health effects of the radiation.

The health effects would overwhelmingly occur in Japan, with extremely small effects in mainland Asia and North America. For example, the United States was predicted to have between 0 and 12 deaths and 0 to 30 cancer cases related to radiation from the Fukushima plant.

The findings should "serve to manage the fear in other countries that the disaster had an extensive global reach," study author John Ten Hoeve, a recent Ph.D. graduate, said in a Stanford news release.

More information

The World Health Organization has more about health concerns associated with the Fukushima disaster.

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WHO: Dementia cases worldwide will triple by 2050

are set to soar in the coming decades as life expectancy and medical care improve in poorer countries, the World Health Organization says.

Some 35.6 million people were living with dementia in 2010, but that figure is set to double to 65.7 million by 2030, the U.N. health agency said Wednesday. In 2050, it expects dementia cases to triple to 115.4 million.

"The numbers are already large and are increasing rather rapidly," said Dr. Shekhar Saxena, the head of WHO's mental health division.

Most dementia patients are cared for by relatives who shoulder the bulk of the current estimated annual cost of $604 billion. And the financial burden is expected to rise even faster than the number of cases, WHO said in its first substantial report on the issue.

"The catastrophic cost drives millions of households below the poverty line," warned the agency's director-general, Margaret Chan.

Dementia, a brain illness that affects memory, behavior and the ability to perform even common tasks, affects mostly older people. About 70 percent of cases are believed to be caused by Alzheimer's.

In the last few decades, dementia has become a major public health issue in rich countries. But with populations in poor and middle-income countries projected to grow and age rapidly over the coming decades, WHO appealed for greater public awareness and better support programs everywhere.

The share of cases in poor and middle-income countries is expected to rise from just under 60 percent today, to over 70 percent by 2050.

So far, only eight countries

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Study: Dental therapists worldwide offer safe care

A new report says dental therapists worldwide including those in rural Alaska, offer safe, competent care in locations with rare access to dentists.

The report released Tuesday by the W.K. Kellogg Foundation details a review of more than 1,100 documents of care by dental therapists in 54 countries, including the United States.

Beside Alaska, Minnesota is the only U.S. state to allow midlevel providers to perform such work as extracting teeth and filling cavities.

Foundation officials say more than a dozen other states are exploring the idea.

Dental therapists in Alaska and elsewhere have been controversial. Critics, including many dentists, say such complex procedures should be done only by licensed dentists.

The Kellogg Foundation says the study found no evidence suggesting dental therapists weren't fit for the work.

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