I consider sharing the information rather than keeping it alone. The advantage of data sharing is to contribute the update knowledge or situation to others. For example in this COVID-19 outbreak, we could follow the current number of cases start from China through many countries, thus we could assess the risk for our own country. That benefit the pandemic preparedness. On the other hand, the disadvantage of data sharing includes privacy and security. Patients themselves might not intensionally reveal their medical history and the private information might be invaded. For that reason, information technology could not only extend the benefit of data sharing, but also minimize the risk from using it.