N Nitrogen

The ancient scourge smallpox was relegated to biowaste bin of history more than 30 years ago, the result of the world's first and only successful disease eradication programs. Since then, however, cases of monkeypox--a serious, although less severe smallpoxlike illness--have substantially increased in central Africa, according to a study published August 30 in Proceedings of the National Academy of Sciences . The authors stress that better surveillance and a thorough assessment of the public health threat posed by this once-rare viral infection are needed.

"I'm concerned about monkeypox," says Don Burke director of the Center for Vaccine Research at the University of Pittsburgh, who wasn't involved in the study. "It isn't going to emerge as pandemic tomorrow, but could at any time start to increase its transmission. It's worrisome. This is the type of warning siren we need to take very seriously."

The ancient scourge small pox was relegated to biowaste bin of history more than 30 years ago, the result of the world's first and only successful disease eradication programs. Since then, however, cases of monkey pox--a serious, although less severe small pox–like illness--have substantially increased in central Africa, according to a study published August 30 in Proceedings of the National Academy of Sciences . The authors stress that better surveillance and a thorough assessment of the public health threat posed by this once-rare viral infection are needed.

"I'm concerned about monkey pox," says Don Burke director of the Center for Vaccine Research at the University of Pittsburgh, who wasn't involved in the study. "It isn't going to emerge as pandemic tomorrow, but could at any time start to increase its transmission. It's worrisome. This is the type of warning siren we need to take very seriously."

Treatment of severe depression with magnetic stimulation is moving beyond large mental health centers and into private practices nationwide, following more than two decades of research on the treatment. Yet even as concern about its efficacy fades, one potential side effect--seizures--continues to shadow the technology. [More]



Mental health - Depression - Major depressive disorder - Health - Disorders

Targeted beams of high-intensity radiation can shrink early-stage tumors with limited collateral damage to surrounding healthy tissue. The addition of robotics and image guidance systems in recent years has made these stereotactic, or directed beam, radiosurgery systems an even more versatile weapon against cancer, attacking not only brain tumors (for which they were originally designed) but also other diseases virtually anywhere in the body. [More]



Cancer - Health - Brain tumor - Radiosurgery - Medicine

The Age of Digital Entanglement By Danny Hillis

The HIV pandemic has historically been thought of as either concentrated in specific populations--such as gay men, injection drug–users, sex workers--or generalized across the entire population in sub-Saharan Africa and the Caribbean. But as more and better epidemiological data has become available, the evidence is clear: men who have sex with men (MSM), regardless of whether or not they identify as gay, also are at the core of those generalized epidemics.

MSM in developing countries are 19 times more likely to be infected with HIV than the general population, according to a 2007 literature review.

The "War on Drugs" has failed, particularly with regard to the spread of HIV in middle-income nations and some developing nations in Asia. The disease is now starting to bleed into Africa as well. [More]



drug war - Drugs - HIV - Health - Africa

When the first positive results of a research trial for an antiretroviral-based vaginal microbicide gel were announced at the International AIDS Conference in Vienna this July, it marked a significant thinning of the line between HIV treatment and prevention. The same agents that had been designed and developed to slow the virus's proliferation within the human body  now had the potential to be used to help bar it from successfully setting up shop in the first place. [More]



HIV - Vienna - Antiretroviral drug - Health - Conditions and Diseases

All things must come to an end, but we humans have an endless fascination with the inevitable. Our September 2010 special issue and our web exclusives explore some of those endings. Writers and filmmakers, of course, have been tackling apocalyptic themes for decades, at times using them to highlight emotional aspects of sacrifice, heroism and dedication, to varying degrees of success. [More]



Human - Death - Art - Apocalypse - Writers Resources

You’ve probably seen dogs working security at airports, sniffing for drugs, bombs and contraband food. Now our best-friend biosensors might have a new task: ferretting out the scent of bird flu.

And they may not be alone on the job. Researchers from the U.S. Department of Agriculture and Monell Chemical Senses Center trained mice to identify duck droppings from animals infected with bird flu. The work was presented at the National Meeting of the American Chemical Society in Boston. [Bruce Kimball et al.]