What is severe acute respiratory syndrome (atypical pneumonia)?
The illness is an acute respiratory infection that has recently been reported in a number of regions, including CHINA, China Hong Kong. It is a form of atypical pneumonia caused by a new agent.

What causes severe acute respiratory syndrome? 
Latest research findings by WHO suggests that a coronavirus is the primary cause of the disease. 

Is the disease fatal?
In most cases no. With early detection and treatment there is a high chance of recovery. Severe cases are usually seen in patients with pre-existing health problems or who seek treatment at a late stage.

What is the incubation period of the disease?
The incubation period is typically 2 - 7 days.

What are the symptoms of the disease?
The main symptoms include fever (of 38 degrees Celsius or above), malaise, chills, headache and body ache. Chest X-rays show changes compatible with pneumonia. Other symptoms include coughing, shortness of breath or difficulty in breathing.

If I think I have the disease, should I go to a Hospital Accident and Emergency Department immediately?
Yes, you should visit the hospital or seek early medical advice from your family doctor if you suspect you are displaying symptoms of the disease. 

Is there a test for the disease? 
A chest X-ray will help confirm the diagnosis. A rapid test has been developed to detect the coronavirus in patients.

Is there any treatment available?
Yes, experience in Hong Kong shows that patients react favourably to ribavirin (a broad spectrum antiviral drug) and steroid treatment. Other treatment methods are also being developed and tested.

 What is the difference between classical/typical pneumonia and atypical pneumonia? 
Classical/typical pneumonia is mainly caused by bacteria such as streptococcus.
Atypical pneumonia is mainly caused by viruses such as influenza and adenovirus, bacteria such as chlamydia and mycoplasma, and other unknown agents. 

What is the difference between influenza and atypical pneumonia? 
Influenza symptoms such as fever, cough and headache usually subside within a few days without any serious complications or signs of pneumonia.