The cloud offers a host of potential uses, according to the healthcare industry and academic medical center representatives who participated in a HIMSS survey. Application hosting was the top use, identified by 90 percent of the respondents. Other potential uses cited: disaster recovery and backup, hosting application data, hosted email services, managed services, virtual servers and security. The global healthcare cloud computing market is projected to reach $35 billion in 2022, from about $20 billion in 2017.