Application of a Nonpaper Based Matrix to Preserve Chikungunya Virus Infectivity at Ambient Temperature.

For over 100 years, field studies on arboviruses and the subsequent delivery and administration of live attenuated vaccines have been complicated by the need to maintain a so-called "cold chain," which is the source to destination refrigeration of biological materials. In this study we describe the application of a nonpaper based matrix and demonstrate preservation of chikungunya virus infectivity at ambient temperature for 7 days. The technique was successfully employed using infectious cell culture medium and infected mosquito homogenate samples. This technique provides a simple solution for conducting studies in resource-limited areas, where the maintenance of a cold chain is technically challenging.