Although rapid diagnostic tests significantly improve the treatment of malaria, new findings reveal they also have some unexpected negative consequences. According to The New York Times, study results showed the tests substantially decreased the number of patients with fever who were incorrectly given or sold malaria drugs; however, the number of patients who received antibiotics dramatically increased, even if they were not tested for bacterial infections. Furthermore, a shocking number of patients who tested positive for malaria did not receive treatment. At 5 of 8 testing sites in Africa, more than 20% did not receive malaria drugs, the NY Times reported.
A novel electronic chip can reprogram damaged skin cells in mice to heal their wounds, according to NPR. The device was placed on the legs of mice and activated to send a small electrical pulse into skin cell membranes to open a tiny hole on the cell surface. A microscopic chute is then used and the chip shoots a new genetic code through the window and into the cell to begin reprogramming. The device is about the size of a big toenail, and the process takes less than 0.1 seconds. Furthermore, it can successfully deliver its genetic payload almost 100% of the time, according to the investigators. Developer Chandan Sen hopes the device can one day be used to treat human wounds, according to NPR.