The Cochrane Library published an expedited systematic review of government policy and found that early quarantine with other public health measures is effective in limiting the pandemic , but the best manner of adopting and relaxing policies are uncertain , as local conditions vary. < ref > Nussbaumer‐Streit , B ; Older adults and those with underlying medical conditions such as diabetes , heart disease , respiratory disease , hypertension , and compromised immune systems face increased risk of serious illness and complications and have been advised by the CDC to stay home as much as possible in areas of community outbreak .
The Cochrane Library argued that early containment measures can impede the spread of COVID-19 .