Public Health News Roundup: November 28
More than Half of Young People With HIV Go Undiagnosed
About 60 percent of people ages 13 to 24 who are infected with HIV don’t even know it, according to a new Vital Signs report from the U.S. Centers for Disease Control and Prevention (CDC). The report, which comes shortly before World AIDS Day on December 1, found about 12,200 new infections in that age group in 2010. The rates were the highest for African Americans and gay and bisexual men. The high number of undiagnosed HIV cases is in part because only 35 percent of 18-24 year olds and only 13 percent of high school students have been tested. “That so many young people become infected with HIV each year is a preventable tragedy,” said CDC Director Thomas R. Frieden, MD, MPH. “All young people can protect their health, avoid contracting and transmitting the virus, and learn their HIV status.” Read more on HIV/AIDS.
Study: Whooping Cough Vaccines Weakens Over Time
The 2010 pertussis—or whooping cough—outbreak in California indicates the vaccine guarding against it weakens over time, so health officials may need to revise the vaccination schedule, according to a new report in the Journal of the American Medical Association. The outbreak killed 10 infants and sickened more than 9,000. There have been more than 36,000 cases in the United States this year, according to the U.S. Centers for Disease Control and Prevention. Researchers found that while the vaccine was effective when given to infants, by the time those children were 7 to 10 years of age it had weakened and left them more vulnerable to the disease. "Within the first few years, the vaccine's efficacy was around 98 percent," said Lara Misegades, study author and a CDC epidemiologist."Five or more years out, the vaccine effectiveness had dropped to about 71 percent." The DTaP vaccine also immunizes against diphtheria and tetanus. Read more on vaccines.
Court Orders Tobacco Companies to Fund a Media Campaign Admitting Deceptions
A U.S. District Court has ruled that several major tobacco companies must pay for and run a public advertising campaign admitting they spent years lying about the dangers of tobacco. The ruling is part of the case brought in 1999 by the U.S. Department of Justice. The details of the campaign are not finalized and the decision may be appealed. The media campaign, which could run for up to two years, would include messaging such as "Smoking kills, on average, 1,200 Americans. Every day." "Requiring the tobacco companies to finally tell the truth is a small price to pay for the devastating consequences of their wrongdoing," said Matthew Myers, president of the Campaign for Tobacco-Free Kids, according to Reuters. Read more on tobacco.