Severe Acute Respiratory Syndrome Virus. Read about severe acute respiratory syndrome (SARS), a highly contagious, serious and potentially life-threatening form of pneumonia. Severe acute respiratory syndrome (SARS) was caused by a previously unrecognized animal coronavirus that exploited opportunities provided by 'wet markets' in southern China to adapt to become a virus readily transmissible between humans.
This is believed to be an animal virus that recently crossed the species barrier to infect humans.
Like all living things, viruses are constantly changing and evolving.
It is important to remember that specimens are a biohazard and appropriate precautions must be observed. SARS is a systemic disease, especially in severe cases, in which a wide spectrum of tissue and cell types is directly infected by virus or is affected indirectly. A select agent is a bacterium, virus or toxin that has the potential to pose a severe threat to public health and safety.
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