かぜレコ is an app that allows users to investigate common cold symptoms. The app collects data on symptoms such as fever, cough, nasal congestion, sore throat, and fatigue, and also integrates with Apple Health to gather health data related to activities, sleep, heart rate, and nutrition.

In addition to common cold symptoms, the app also focuses on respiratory infections that exhibit similar symptoms to COVID-19. It aims to investigate respiratory infections that commonly present symptoms like fever, cough, fatigue, sore throat, and nasal congestion, including the current global issue of COVID-19. By inputting data and participating in the app, users can contribute to the research conducted by the National Center for Global Health and Medicine's International Research Center for Infectious Diseases, helping to identify individuals with symptoms before being diagnosed with cold, influenza, or COVID-19. The app also provides features like visualizing the distribution of symptomatic individuals on a map and tracking the number of symptomatic individuals in different regions.

The information collected through this app will be analyzed in conjunction with meteorological data to uncover the weather conditions that are conducive to cold outbreaks and the conditions that facilitate the spread of infections. Furthermore, as respiratory infections include COVID-19, the app aims to collect information on individuals who had mild cases of COVID-19 but did not seek medical attention, potentially enabling the detection of clusters and other patterns. The ultimate goal of this research is to utilize human behavior, meteorological conditions, and infection information to predict the spread of infections in the future.