If you want a real-time picture of the country’s health, you can check out Google Flu Trends or the Centers for Disease Control,  but getting information that is both real-time and accurate is tricky. Kinsa wants to change that with a real-time picture of the country’s health, using smartphones and simplified digital thermometers. Kinsa plugs directly into a smartphone’s earphone jack and after downloading the Kinsa app, users can see their temperature on the smartphone screen, as well as log other symptoms and share the information with a doctor, family or a private group. Using Big Data, it is hoped it can provide individuals, doctors, public health officials and health companies with better information on where and when illnesses are spreading.