Lessons from severe acute respiratory syndrome (SARS): implications for infection control

Area of Science:

• * Epidemiology and Public Health
• * Infectious Diseases
• * Virology

Background:

• * The Severe Acute Respiratory Syndrome (SARS) epidemic emerged in 2002, caused by a novel coronavirus originating from animal-to-human transmission.
• * The outbreak was linked to the exotic food industry in Southern China, initially affecting animal handlers and subsequently spreading through person-to-person transmission.

Observation:

• * The epidemic affected over 8500 individuals across approximately 30 countries, with a crude mortality rate of 9%.
• * A significant clinical observation was that about half of the SARS patients were healthcare workers, infected during patient care.

Findings:

• * The SARS coronavirus demonstrated efficient zoonotic spillover and human-to-human transmission.
• * Healthcare settings became major centers for SARS transmission, underscoring occupational risks for medical personnel.

Implications:

• * The SARS epidemic provided critical lessons for infectious disease physicians regarding epidemic preparedness and response.
• * Understanding the transmission dynamics and high susceptibility of healthcare workers is vital for mitigating future infectious disease outbreaks.