https://time.com/5802423/coronvirus-asthma-high-risk/

Every year, people with asthma brace for seasonal colds and flu, which can aggravate wheezing and coughing. Asthma, a common long-term lung condition, can cause difficulty breathing and shortness of breath and accounts for 9.8 million doctor visits and 1.8 million hospital visits in the United States per year.