Prevention In the absence of a vaccine, prevention is composed of a combination of nonpharmacological interventions for suppression of transmission to R0 <1 and mitigation of the number of patients with COVID‐19 who require intensive care and mechanical respiratory support. 12 Interventions include improved personal hygiene promotions, symptomatic screening and laboratory testing for case detection, contact tracing, household quarantine of those with transmission risks, and social distancing (Table 3). The United States and most other countries have implemented extensive travel restrictions, workplace and school closures, and cancellation of sporting and other large public events. China, South Korea, and Taiwan successfully curbed large COVID‐19 epidemics with prompt scale‐up of testing, contact tracing, and quarantine. 2 , 4 , 7 In the United States, although testing rates are low, models suggest prevention measures are reducing transmission and future deaths. 13 The US government recently recommended increased COVID‐19 surveillance, testing, and contact tracing with modified social distancing measures to sustain SARS‐CoV‐2 prevention while opening up education and commerce. 14 Table 3 Prevention Measures to Reduce Risks for COVID‐19, Priority Populations for Testing, and Information Resources Prevention measures to reduce risks for COVID‐19 Practice good hygiene ○ Wash hands often for >20 seconds with soap and water or 60% alcohol sanitizer ○ Avoid touching eyes, nose, and mouth with unwashed hands ○ Sneeze or cough into a tissue or inside of the elbow ○ Disinfect surfaces and used items frequently with soap and water and Environmental Protection Agency–registered household disinfectants or bleach solution (4 teaspoons [20 mL] bleach per quart [or 1 L] water) Limit close social contact ○ Learn signs and symptoms of COVID‐19, and follow local disease trends ○ Stay home as much as possible, particularly persons who are ill, older (>65 years) adults, and those at risk for severe COVID‐19 ○ Persons who are ill, call a health care provider ○ Consider 2‐week supply of medications, food, and other essentials ○ When out in public, keep social distance of at least 6 feet and wear a cloth face cover ○ Avoid gatherings of >10 persons ○ Work or attend school from home ○ Avoid unnecessary travel ○ Avoid visits to nursing homes or long‐term retirement facilities Protect patients and health care workers ○ Reduce facility risks: screen for COVID‐19 symptoms on entry; reduce visits; practice telemedicine ○ Isolate symptomatic patients as soon as possible ○ Protect health care personnel with recommended infection‐control procedures Recommended testing in consultation with health care provider Hospitalized patients Persons with symptoms of COVID‐19 ○ Health care facility workers ○ Patients in long‐term care facilities ○ Patients >65 years of age ○ Patients with underlying conditions with symptoms ○ First responders Critical infrastructure workers and others with symptoms Health care facility workers and first responders Persons mildly ill in communities with high numbers of COVID‐19 hospitalizations Good information resources Centers for Disease Control and Prevention: https://www.cdc.gov/coronavirus/2019-ncov/index.html World Health Organization: https://www.who.int/emergencies/diseases/novel-coronavirus-2019 Infectious Disease Society of America: https://www.idsociety.org/public-health/COVID-19-Resource-Center/ American Association for the Study of Liver Diseases: https://www.aasld.org/about-aasld/covid-19-resources European Association for the Study of the Liver: https://easl.eu/covid-19-and-the-liver/ European Centre for Disease Control and Prevention: https://www.ecdc.europa.eu/en/covid-19-pandemic The Society for Healthcare Epidemiology of America: https://www.shea-online.org/ John Wiley & Sons, Ltd This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.