After careful screening , volunteers will be inoculated and asked to keep a diary on how they feel . CNN has received five responses since this fall . Thousands of Americans being recruited for trials in dozen of sites across nation . Patients will be asked to keep progress while they are monitored for two months . Doctor says virus could sicken one in five people two months and peak in October .
CNN has received five responses since this fall . Thousands of Americans being recruited for trials in dozen of sites across nation . Patients will be asked to keep progress while they are monitored for two months . Doctor says virus could sicken one in five people two months and peak in October .