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MS Society Responds To Debbie Purdy Ruling - Clarification On The Law Of Assisted Suicide, UK
The MS Society has responded to today"s Law Lords ruling concerning the case of Debbie Purdy, who has sought clarification on the law of assisted suicide.
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California Medical Association Supports Senate Move To Expand Health Care Coverage
The California Medical Association applauded the U.S. Senate Finance Committee for producing a thoughtful analysis of ways to expand the nation"s health care coverage. The committee"s paper, titled "Expanding Health Care Coverage: Proposals to Provide Affordable Coverage to All Americans," includes certain market reforms that all participating health plans would be required to participate in.
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Experts Say Slant Toward Male Births Among Asian-American Families Reflects Sex Selection Practices
Research indicating distorted ratios of male to female births among U.S. residents of Chinese, Indian and Korean descent could reflect those families" openness to sex-selection techniques, according to some demographers, the New York Times reports. Historically, male births in the U.S. have led female births by a ratio of 1.05 to 1. A study published last year in Proceedings of the National Academy of Sciences examined 2000 census data and found that among Chinese-, Indian- and Korean-American families, if the first child was a girl, the likelihood that the second child was a boy increased to 1.17 to 1. In addition, if the first two children were girls, the chance that the third was a boy was 1.51 to 1, or about 50% greater than normal. In a study published this year, Jason Abrevaya of the University of Texas examined census data and birth records through 2004, finding that the incidence of boys as third children among immigrant Chinese parents in New York was 558 of every 1,000 births, significantly higher than the national average of 515. Many experts were surprised at the evidence that the cultural preference for sons among some Asian cultures has carried over to immigrants in the U.S., the Times reports. Studies have not demonstrated a slanted proportion of male births among Japanese immigrants, according to the Times. According to demography experts, the deviation toward male births among some Asian-American immigrants reflects both a cultural preference for boys and an increased tendency for families to seek out sex-selection techniques such as in vitro fertilization, sperm sorting or abortion. Some clinics that offer IVF or sperm sorting to select for sex market their services to Asian-American families through advertisements in Indian- and Chinese-language newspapers. In 2001, criticism arose within the Indian-American community about clinics targeting that population, and some community newspapers and magazines expressed regret for publishing advertisements that critics said were perpetuating a misogynistic practice. Joyce Moy, executive director of the Asian American/Asian Research Institute of the City University of New York, said that younger Chinese immigrants have adopted the family values that are common in China -- such as the tradition of elders depending on their sons for support -- even though some of the reasons behind those customs are less relevant in the U.S. Experts say that the preference for male children may fade with further assimilation, the Times reports.In China, sex selection typically is achieved through abortion of female fetuses. Although doctors say the practice also occurs in the U.S., few families discuss it, the Times reports. Lisa Eng, a Hong Kong-born gynecologist who practices in New York City"s Chinatown and Brooklyn, said that she attempts to discourage couples who prefer boys from having abortions. "If it"s going to be a third [child], they"re pretty determined to have a boy," she said, adding, "If it"s a boy, they keep it. If it"s a girl, they"ll abort" (Roberts, New York Times, 6/15).
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Researchers Describe History Of Swine Flu And Warn About Using Extinct Viruses

In a leading medical journal this week US researchers describe the 90-year history of swine flu and warn about working with "freezer" viruses, which they suspect is how an H1N1 virus that closely resembles a temporarily "extinct" 1950s strain resurrected some 20 years later and continues to circulate as a seasonal flu strain today. The report is by two disease experts at the University of Pittsburgh Graduate School of Public Health and appears in the 29 June 2009 online issue of the New England Journal of Medicine. The current strain of H1N1 swine flu is descended from a virus that sickened pigs in 1918 at the Cedar Rapids Swine Show in Iowa, they write. Senior author Dr Donald S. Burke who is dean of the University of Pittsburgh Graduate School of Public Health, told the press: "At the same time the 1918 flu pandemic was rapidly spreading among humans, pigs were hit with a respiratory illness that closely resembled symptoms seen in people." "Early experiments confirmed that this 1918 swine virus and a human strain emerged about the same time," he said. Burke explained that since that time, the genes of this ancestral strain of swine flu have "re-assorted" with those of other flu strains at least four times, resulting in the new 2009 strain, which still bears similarities to the original virus. In their report, Burke and lead author Dr Shanta M. Zimmer, assistant professor, University of Pittsburgh School of Medicine, explain that although originally traced to Mexico, the exact physical origins of the 2009 H1N1 pandemic virus are unknown. But because today"s virus has the same ancestors as older flu strains, this could be how some people appear to have partial immunity to the new pandemic virus, they write. Burke and Zimmer also describe how the H1N1 virus temporarily became "extinct" in humans in 1957 and then re-appeared 20 years later. They write of a small contained outbreak of H1N1 among 230 soldiers at Fort Dix in New Jersey that did not spread outside the base, and yet 20 years later, in 1977, H1N1 influenza re-emerged in people living in the former Soviet Union, Hong Kong and northeastern China. However, genetic studies have since shown that this re-emerged strain was not the Fort Dix strain as first suspected, but a very close relative of an earlier strain from 1950. This leads the authors, and others, to suspect that in 1976, during a "flurry" of investigation to trace the Fort Dix strain, someone accidentally released a "freezer" virus that had been preserved since 1950. There is no proof that this is what happened, it is merely a theory based on the genetic similarity of the 1950 strain to the 1977 strain, which still circulates as a seasonal flu virus today. Burke and Zimmer explain that the danger of a virus is determined by two things: how lethal it is and how easily it passes from host to host. A virus that passes readily from human to human and from animals to humans and vice versa has a greater chance of surviving and adapting through mutation, which is how H1N1 has managed to survive this long. "Studying the history of emergence and evolution of flu viruses doesn"t provide us with a blueprint for the future, but it does reveal general patterns, and this kind of information is critical if we are to be as prepared as possible," said Burke. Burke and Zimmer suggest that the emergence of yet another serious global health threat from an animal shows how important it is to understand zoonotic viruses (viruses that jump from species to species), and call for more live studies of virus development in animals, as well as more "field epidemiologic studies, and surveillance in animal populations, along with the development of computational models". And, since the current swine flu strain is thought to have originated outside the US, it is also important to collaborate closely with other countries in "efforts to predict and control future pandemic threats," they write. "Historical Perspective -- Emergence of Influenza A (H1N1) Viruses." Zimmer, Shanta M., Burke, Donald S. N Engl J Med Published online 29 June 2009. DOI: 10.1056/NEJMra0904322 University of Pittsburgh Schools of the Health Sciences. Written by: Catharine Paddock, PhD Copyright: Medical News Today Not to be reproduced without permission of Medical News Today


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