Vaccines are desperately needed in the developing world.…

Vaccines are desperately needed in the developing world. Even when they're available and 1 , there's still a major problem: most vaccines need to be refrigerated. Reaching the 2 populations often means traveling to areas, where electricity and refrigeration are spotty at best. Nearly half of the vaccine doses around the world are lost to the heat. Also, the cost of refrigeration 3 to about 80 percent of the cost of the vaccines. So silk experts at Tufts University have come up with a potential solution: encase the vaccines in silk protein. Silk proteins 4 nanoscale pockets that can hold and protect biological compounds. Inside the silk protein wrap, the compounds stay 5 stable. In the lab, they were able to stabilize the measles, mumps and rubella vaccine for more than 6 months at a variety of 6 temperatures. The technology also worked with antibiotics. Stored at a month at temperatures reaching 140 7 Fahrenheit, the antibiotics kept their potency. The research is in the Proceedings of the National Academy of Sciences. If the lab results hold up out in the world, the silk 8 could save billions of dollars, and millions of lives.