In what scenario Hospital Authority will issue Alert Response Level? World Health Organization declares pandemic situation Confirmation of High Prevalence Avian Influenza outbreak in Vietnam poultry market Confirmation of High Prevalence Avian Influenza outbreak in Hong Kong poultry market Confirmation of efficient human-to-human transmission of novel influenza in Hong Kong

The Hospital Authority in Hong Kong would issue an Alert Response Level in the following scenarios:

1. When the World Health Organization declares a pandemic situation: This is a global outbreak of a disease. The Hospital Authority would need to prepare for an increase in patients and potentially adjust their operations to handle the pandemic.

2. Confirmation of High Prevalence Avian Influenza outbreak in Vietnam poultry market: While this is not in Hong Kong, the close proximity and trade between the two regions could potentially lead to the disease spreading to Hong Kong. The Hospital Authority would need to be on alert to handle potential cases.

3. Confirmation of High Prevalence Avian Influenza outbreak in Hong Kong poultry market: This is a direct threat to the health of the people in Hong Kong. The Hospital Authority would need to respond quickly to handle the outbreak and treat any infected individuals.

4. Confirmation of efficient human-to-human transmission of novel influenza in Hong Kong: This is a significant threat as it means the disease can spread quickly among the population. The Hospital Authority would need to issue an Alert Response Level to handle the potential increase in patients and to try to control the spread of the disease.

The Hospital Authority in Hong Kong would issue an Alert Response Level in several scenarios related to public health emergencies. These scenarios include:

1. When the World Health Organization (WHO) declares a pandemic situation. A pandemic is a global outbreak of a disease. The WHO declaration would signal that a new influenza virus is causing severe illness in people and is spreading easily from person to person worldwide.

2. Confirmation of a High Prevalence Avian Influenza outbreak in the Vietnam poultry market. This would be a concern because the virus could potentially spread to Hong Kong through the import of poultry or through people traveling from Vietnam to Hong Kong.

3. Confirmation of a High Prevalence Avian Influenza outbreak in the Hong Kong poultry market. This would be a direct threat to public health in Hong Kong, as the virus could spread to humans who come into contact with infected poultry.

4. Confirmation of efficient human-to-human transmission of a novel influenza in Hong Kong. This would be a significant public health concern, as it would mean that a new influenza virus is spreading easily from person to person in the local population.

The Hospital Authority in Hong Kong would issue an Alert Response Level in several scenarios related to public health emergencies. These scenarios include:

1. When the World Health Organization (WHO) declares a pandemic situation. A pandemic is a global outbreak of a disease. The WHO declaration would signal that the disease has spread over multiple countries or continents and is affecting a large number of people.

2. Confirmation of a high prevalence Avian Influenza outbreak in the Vietnam poultry market. This would be a concern for Hong Kong due to the close proximity and trade relations between the two regions. The disease could potentially spread to Hong Kong through the import of infected poultry.

3. Confirmation of a high prevalence Avian Influenza outbreak in the Hong Kong poultry market. This would be a direct threat to public health in Hong Kong, as the disease is present in the local poultry supply.

4. Confirmation of efficient human-to-human transmission of a novel influenza in Hong Kong. This would be a significant public health concern, as it indicates that a new strain of influenza is spreading easily between people in Hong Kong.

In each of these scenarios, the Hospital Authority would issue an Alert Response Level to mobilize resources, implement disease control measures, and inform the public about the situation.