Sars virus: Questions and answers
What is Sars and how does it spread?
Sars – severe acute respiratory syndrome – is a new and deadly flu-like virus. Symptoms include a burning fever, difficulty in breathing and a dry cough. The virus most commonly spreads through close contact and is passed through the tiny droplets of water created by breathing.
How far has the disease now spread?
According to latest World Health Organisation figures, 26 different countries have reported probable cases of Sars. People have died in China, Hong Kong, Canada, Malaysia, Singapore, Thailand and Vietnam. The highest number is in Hong Kong, where 88 people are confirmed dead, with a further 79 in mainland China.
Why has it spread so quickly?
The increase in numbers of people flying allows the virus to spread easily, especially with Hong Kong being a transport hub.
Is it under control?
Officials in Hong Kong said the situation had stabilised despite a high number of deaths reported over the weekend. The inadequate response to the outbreak in mainland China means that further cases there are likely. Singapore and Canada also continue to experience new cases.
How long will this outbreak last?
Less than two months after the world was alerted to the threat of Sars, 13 laboratories in 10 countries collaborated to discover what they were dealing with. Tackling it is the next step. The nature of the Aids virus took far longer to identify.
How close are we to a cure?
Identifying the virus was an important first step. A vaccine is unlikely to be developed for months or even years.
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