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Algebra Adds Value To Mathematical Biology Education
As mathematics continues to become an increasingly important component in undergraduate biology programs, a more comprehensive understanding of the use of algebraic models is needed by the next generation of biologists to facilitate new advances in the life sciences, according to researchers at Sweet Briar College and the Virginia Bioinformatics Institute (VBI) at Virginia Tech.
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Merck's Gardasil Effective At Preventing HPV, Cervical Disease In Older Women, Study Finds
Merck"s human papillomavirus vaccine, Gardasil, was 90% effective in preventing infection with the virus and cervical disease in women ages 24 to 45, according to a study published Monday in the medical journal Lancet, Reuters reports (Fox, Reuters, 6/1). In the U.S., the vaccine currently is FDA-approved for girls and women ages nine to 26. Centers for Disease Control and Prevention guidelines recommend routine three-dose vaccination of girls ages 11 and 12 and for girls and women ages 13 to 26 who have not yet been vaccinated (CDC fact sheet, June 2008). It is designed to protect against HPV types 16 and 18, which cause about 70% of all cervical cancer cases, and HPV types 6 and 11, which cause genital warts.The new study, led by Nubia Munoz of the National Institute of Cancer in Bogota, Colombia, and funded by Merck, involved women ages 24 to 45 with no history of cervical disease or genital warts who either received the vaccine or a placebo injection. The study found that women who received the vaccine were significantly less likely to be infected with certain strains of HPV than those who received placebo shots. According to the researchers, four women out of 1,900 who received the vaccine developed HPV or cervical disease after two years, compared with 41 women out of 1,900 in the placebo group.Reuters reports that the results of the study could help Merck as it seeks approval for marketing Gardasil for use in older women. The researchers said in the study that older women might be at risk for HPV infection as "[c]hanges in sexual behavior during the past 30 years ... have led to more widespread premarital sexual intercourse and acquisition of new sexual partners around middle age." They added, "As the potential for HPV infection and disease exists in women in their third, fourth and fifth decades of life, these women could benefit from prophylactic HPV vaccination." According to Reuters, a mathematical model published in October 2005 showed that vaccinating older women could cut rates of cervical cancer in women through age 45 by half. Merck also has released data showing the effectiveness of the vaccine in preventing genital lesions in men.According to the Centers for Disease Control and Prevention, HPV is the most common sexually transmitted infection worldwide, and about 20 million U.S. residents are infected with it. The virus is the leading cause of cervical cancer, which causes about 3,870 deaths in the U.S. and 300,000 deaths globally every year, and it also can cause anal, penile, mouth and neck cancer (Reuters, 6/1).
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Digital Medicine: Health Care In The Internet Era
With more than $19 billion in new spending planned for health information technology, the Obama administration is taking serious steps toward modernizing the U.S. health care system. Implementing health IT can reduce both costs and errors, but it requires extensive information infrastructure upgrades. Few hospitals, clinics or private practices have the funds to pay for new technology. The new Brookings Institution Press book Digital Medicine: Health Care in the Internet Era investigates the factors affecting digital technology"s ability to remake health care.
Sexual Health

Advocates At Kenya Conference Explore New Strategies To Combat HIV/AIDS In Africa

Nearly 30 years after the emergence of HIV/AIDS, the global health community must develop new strategies to curb the spread of the disease in sub-Saharan Africa, some experts said Tuesday ahead of the Global Citizens Summit for Social Mobilization to End AIDS in Nairobi, Kenya, AFP/Google.com reports. The advocates also stressed the need for innovative approaches to health financing as international donors shift their attention toward other issues and as the ongoing economic downturn threatens fundraising prospects. The conference, which opens Wednesday, includes participants from 32 countries, primarily in Africa.According to Wasai Jacob Nanjakululu of Oxfam, about 90% of HIV-positive people are unaware of their status and 70% of people in need of treatment are not accessing medical care. Leonard Okello, an HIV/AIDS specialist with ActionAid International, added that the global health community is "far from winning the struggle against" HIV/AIDS. Okello said the conference will examine the shortcomings of earlier HIV/AIDS policies and explore new methods to address the disease. "There are a lot of res in HIV/AIDS programs but not much of that reaches the community," Okello said, asking, "What is it that we should radically change?" (AFP/Google.com, 5/26). According to IRIN/PlusNews, conference participants also plan to discuss "people-centered" approaches to combating HIV/AIDS at the Nairobi meeting. ActionAid Report Calls For Improvements in Basic Health Care To Address HIV/AIDS In related news, ActionAid ahead of the Nairobi conference released a report calling for countries to scale up local health care capacity in order to effectively address HIV/AIDS. According to the report, titled "Primary Concern: Why Primary Health Care is Key to Tackling HIV and AIDS," equipping local health centers with more res is the best way to tackle HIV/AIDS. Advocates at the report"s launch in Nairobi also called for governments to expand access to primary health care by establishing more clinics and improving existing centers.Linda Mafu, Africa regional coordinator for the World AIDS Campaign, said, "Health centers need to be spread out and properly equipped, so they have the capacity to deal not only with HIV, but with other diseases that affect the population." Mafu added that this could help ease transportation burdens and delays from long waits to visit health centers. Okello added that health officials should train primary health care workers on "the skills to integrate HIV management into their other work." Although an efficient public health sector could provide HIV/AIDS services, the private sector and nongovernmental organizations might need to support health systems for the foreseeable future, the report said. According to the report, many populations such as commercial sex workers choose to "opt out of the public health system," and delays in implementing HIV programs and strengthening health systems could "lead to higher numbers of AIDS-related deaths" (IRIN/PlusNews, 5/27). The ActionAid report is available online. Reprinted with kind permission from http://www.kaisernetwork.org. You can view the entire Kaiser Daily Health Policy Report, search the archives, or sign up for email delivery at http://www.kaisernetwork.org/dailyreports/healthpolicy. The Kaiser Daily Health Policy Report is published for kaisernetwork.org, a free service of The Henry J. Kaiser Family Foundation. © 2009 Advisory Board Company and Kaiser Family Foundation. All rights reserved.


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