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Showing posts with label medicine. Show all posts
Showing posts with label medicine. Show all posts

20100704

What has happened to the pollen count?

“Frankly, it’s been so low this whole season so far, that we haven’t started reporting it yet!” says Dr George Car of CSU’s School of Biomedical Sciences.

Dr Car says the pollen count is the lowest ever in the ten years he has been monitoring it in the Wagga Wagga area. “In previous years, the grass pollen count would have been well into the moderate or even into the high range by mid-October.

“Most grass pollen sensitive people would be having symptoms of hay fever (red itchy eyes, runny noses) by now.”

So far, the grass pollen count has not risen above 10 grains per cubic meter of air. The low range is below 50 (when some sensitive people would be having mild symptoms), moderate is 50 to 150, and high is above 150, when all sensitive people would have symptoms, and most would have noticeable, uncomfortable symptoms, and be using their asthma medicine.

However, tree and shrub pollen levels are similar to previous years. “This is probably due to people watering their gardens – so the garden plants are protected from the dry, and produce their normal pollens. The pollen counter is located within Wagga Wagga itself.

“However grass pollens usually come from outside the city, carried in on the air. As it is so dry, the grass hasn’t developed and pollinated as usual,” Dr Car added.

This does not mean that there won’t be any grass pollen, but it is good news for hay-fever sufferers, as they are likely to have less severe symptoms over a shorter timeframe than in previous years. It also suggests that the danger period for thunderstorm-associated asthma epidemics will also be much shorter.

Tony Kolbe, Director Population Health, Greater Southern Area Health Service explains that, “in most years, the danger period for thunderstorm asthma is from mid October until mid November.

“The low grass pollen counts so far suggest that we may not have an epidemic this year, or if we do get a thunderstorm, that far fewer people are likely to be affected.”

Dr Bruce Graham, lecturer in the CSU School of Biomedical Sciences and member of the Asthma Collaborative Committee - a group of regional health professionals promoting asthma awareness - says it is not all good news. “However, there is still a lot of dust and other (tree and shrub) pollens, as well as fungal spores, in the air.

“This means that while people seem to have fewer hay-fever and asthma symptoms this year, many still have some coughing and throat-clearing symptoms associated with these air-borne particles.”
        

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Iodine question spreads to Pacific islands

Extensive research by Charles Sturt University (CSU) academics into the deficiency of iodine in human diets has spread to the Pacific island country of Fiji.

Masters student at CSU and Lecturer in Biochemistry at the Fiji School of Medicine, Brijesh Kumar, is studying the distribution of iodine deficiency on Fiji’s main Island of Viti Levu.

The United Nations Children’s Fund (UNICEF) and World Health Organisation have contributed US$34 000 for research into iodine deficiency in Fiji through the Fijian Ministry of Health. The funds will be used to measure iodine deficiency and its effects, particularly in pregnant mothers, as well as children aged 8 to 12 years.

Iodine, a trace element that is necessary for the body’s thyroid gland, is essential for normal growth as well as physical and mental development in humans and animals. Dry skin and hair, depression, irritability and memory loss are just some symptoms of iodine deficiency. The effects on pregnant women and unborn children include physical abnormalities, increased infant still births, miscarriages, stunted growth and Cretinism – a chronic disease characterised by physical deformity.

Mr Kumar said the study will determine the effectiveness of a “Universal Salt Iodization” program that was implemented on the recommendation of UNICEF Pacific in Fiji in 1996. “The study will also focus on the participants’ diets and their knowledge of and attitudes towards iodine deficiency,” Mr Kumar said.

“We know that certain foods such as cassava, a major food in Fiji, as well as cabbage and turnips interfere with iodine uptake.”

The Fijian study will complement research already completed in the Riverina region of southern NSW, which found more than half of 16 communities in the region suffer a mild iodine deficiency.

“While about a third of all of people involved in the project had sufficient levels of iodine, almost 53 per cent showed a mild deficiency, and just under one-fifth were diagnosed as moderately or severely deficient,” said the study coordinator and CSU researcher Helen Moriarty.

The Riverina study also found that many people still had low levels of iodine even though they were taking iodised salt. “This corresponds to a Fiji report that found that the iodine levels in salts, even those that were iodized, were often far from the levels classed as sufficient,” Ms Moriarty said.

“The Fijian study focuses on those groups most at risk – children and pregnant women, while also providing an international perspective to our work.”
        

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One Health Commission




In the backyard, on the farm, at the veterinary clinic—humans, animals, and environments everywhere interact to share one health.

The One Health Initiative has promoted this one-health concept for several years. Now the One Health Commission has been launched to help address, more directly, interdisciplinary health issues in the United States and throughout the global village.

On June 29, the commission incorporated as a nonprofit organization. Its main mission is to increase cooperation among health professions and other groups to prevent and treat zoonotic diseases and other medical conditions common to humans and animals.

Dr. Roger K. Mahr proposed the One Health Initiative in July 2006 when he took office as AVMA president.

"It's been very rewarding to see the collaborative effort that has involved many individuals and many entities to bring the One Health Initiative through these past three years to the current point of establishing the One Health Commission," said Dr. Mahr, who has been serving as project director and will serve as the commission's interim CEO.

Along with the AVMA, the American Medical Association and American Society of Microbiology have been among the strong supporters of the One Health Initiative.

"The development of the national commission is an important collaboration between human medicine, veterinary medicine, and environmental medicine—plus the additional support of microbiology, which covers across these disciplines," said Albert Osbahr III, MD, the AMA representative to the commission.

The goals of the commission include creating an integrated strategy to improve public health and expanding awareness of the one-health concept. The commission also plans to illustrate the value of the one-health concept through demonstration projects and to engage the international community to improve global health.

Strategy for public health
Retired Brig. Gen. Michael B. Cates, DVM, AVMA representative to the One Health Commission, thinks the nation needs to increase the quality and decrease the cost of human health care. He said the commission's strategy to improve public health could include promoting preventive over restorative medicine and accounting for animal health and environmental issues, along with increasing cooperation across medical disciplines.

Drs. Cates and Mahr said veterinarians, physicians, and other health professionals can increase cooperation in private practice, education, research, and government.

"Engaging in one health is particularly important at the local practitioner level because more than 60 percent of human diseases are multihost pathogens," Dr. Mahr said.

Veterinarians and physicians can inform clients about zoonoses as well as conditions common to pets and people, such as obesity and cancer.

Dr. Cates said veterinary schools, medical schools, and schools of public health can increase cooperation through interdisciplinary programs and research partnerships.

The Kansas State University interdisciplinary master's degree in public health involves four colleges, said Dr. Cates, who recently became director of the program. Each college provides an emphasis—the veterinary college in infectious diseases, agriculture college in food safety, college of human ecology in nutrition, and college of arts and sciences in physical activity.

Along with its strategy for public health, the One Health Commission will develop a research agenda relevant to the one-health concept.

Drs. Cates and Mahr said the pandemic of H1N1 influenza—a combination of swine, avian, and human influenza strains—shows a need for additional research and action on animal diseases, including government surveillance. Dr. Cates added that recent outbreaks of foodborne illness in humans show a need for government and academia to find better solutions in that area.

"One of the problems with getting funding for preventive measures has been the inability to prove the value of prevention," said Dr. Cates, who was chief of the Army Veterinary Corps. "Research is going to help as we move forward—so it's not only the collaboration to actually do more prevention but also to prove the value of prevention."

Awareness of one health
The one-health concept has been percolating through portions of the scientific community in recent years, but the One Health Commission plans to extend awareness of the concept to the entire scientific community along with policymakers and the public.

Communicating the one-health concept was the focus of a number of recommendations from the original One Health Initiative Task Force. The final report of the task force, "One Health: A New Professional Imperative," is available at www.avma.org/onehealth.

One recommendation from the task force was to hold a One Health Summit.

"The summit will be instrumental in enhancing the visibility of the concept, deriving key strategies and actions beyond the current recommendations, and helping build a strong group of alliances and a supportive coalition," according to the report.

Dr. Mahr said the summit, currently on the schedule for this fall, will be part of launching the One Health Commission.

The One Health Initiative Task Force also recommended commissioning a study of one health by the National Academy of Sciences.

"The scientific credibility and national acceptance of this prestigious body will help considerably in both the visibility and acceptance of the concept," according to the report from the task force.

The One Health Joint Steering Committee, which coordinated the transition from the task force to the commission, established contact with the National Academies about conducting a one-health study. Dr. Mahr said the proposed study would identify priorities for research plus other opportunities to enhance interdisciplinary cooperation, strengthen education, and improve disease surveillance.

Vision to reality, local to global
The One Health Commission will spend the upcoming months largely on operations and planning.

Most immediately, Dr. Osbahr said, the commission needs to establish membership and leadership and find sustainable sources of funding. The commission also must identify centers that can support collaborative efforts, connect with academia to promote one health in education, and finish developing the One Health Summit.

"These are probably the most significant activities for one health, especially promotion of the one-health concept to gain momentum," Dr. Osbahr said.

The One Health Commission also seeks to identify model projects that illustrate the value of applying the one-health concept, and the commission might consider creating additional demonstration projects.

Dr. Mahr said World Rabies Day is an example of a project that applies the one-health concept, teaching people how vaccinating animals for rabies helps prevent rabies in humans. He said the cooperative effort will assist in assessment and control of this serious zoonotic disease.

The One Health Commission will engage international groups such as the World Health Organization, World Organization for Animal Health (OIE), and United Nations Food and Agriculture Organization to extend U.S. efforts in one health globally.

"I think anything that we do, we have to have the vision of extending to impact globally," Dr. Cates said.

With the ease of international travel, Dr. Cates said, almost any infectious disease in the United States has the potential to spread globally—and vice versa. Nations around the world also have other health issues in common.

A motto of the One Health Initiative is "World health through collaboration." Humans, animals, and environments share not only one health but also one world.
        

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