Between 10 and 30% of individuals who are infected with COVID-19 will go on to develop COVID Long Haulers. Even a mild case of COVID-19 can, in some cases, make you quite sick for a long time. Researchers hope that current clinical trials will help them better understand the cause of long COVID, and that further research will provide better treatment options. It also seems that there are many existing drugs which can help COVID Long Haulers recover.