The SARS pandemic

SARS originated in China in 2002. It's thought a strain of the coronavirus usually only found in small mammals mutated, enabling it to infect humans.

The SARS infection quickly spread from China to other Asian countries.There were also a small number of cases in several other countries, including four inthe UK, plus a significant outbreak in Toronto, Canada.

The SARS pandemic was eventually brought under control in July 2003, followinga policy of isolating people suspected of having the condition and screening all passengers travelling by air from affected countries for signs of the infection.

During the period of infection, there were 8,098 reported cases of SARS and 774 deaths. This means the virus killed about 1 in 10 people who were infected. People over the age of 65were particularly at risk, with overhalf dying from the infectionin this age group.

In 2004 there was another small SARS outbreak linked to a medical laboratory in China. It was thoughtto have been the result ofsomeone coming into direct contact with a sample of the virus, rather than being caused by animal-to-human or human-to-human transmission.

Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018