Researchers from Columbia University have developed a “lab on a chip” HIV and syphilis test, and are now reporting the first results from tests in the field conducted in Rwanda. The mChip, as it is called, is the size of a credit card and replicates all steps of an ELISA test, at a lower total material cost and within 20 minutes. After application of a blood sample, the chip is inserted into a $100 battery-powered handheld analyzer. It needs only 1 μl of unprocessed whole blood and does not require any user interpretation of the signal, providing a clear-cut yes or no result.
Right now, HIV testing in developing countries either relies on expensive laboratory testing taking a long time, or uses cheaper methods based on lateral flow, which, although very rapid, do not provide very reliable results. The mChip combines Read more »
*This blog post was originally published at Medgadget*
The World Health Organization’s new patient safety envoy will take on health care acquired infections in his new role, he announced last week. Liam Donaldson, England’s former Chief Medical Officer, pointed out in his first report as envoy that patient safety incidents occur in 4% to 16% of all hospitalized patients, and that hospital-acquired infections affect hundreds of millions of patients globally.
A WHO report outlined the problem.
High-income countries had pooled health care acquired infection rates of 7.6%. The European Centre for Disease Prevention and Control estimated that 4.1 million Europeans incur 4.5 million health care acquired infections annually. In the U.S. the incidence rate was 4.5% in 2002, or 9.3 infections per 1,000 patient-days and 1.7 million affected patients.
In Europe, these infections cause Read more »
*This blog post was originally published at ACP Hospitalist*